663 lines
22 KiB
C
663 lines
22 KiB
C
/*
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* Copyright © 2007 Daniel Stone
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* Copyright © 2007 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Daniel Stone <daniel@fooishbar.org>
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <dbus/dbus.h>
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#include <hal/libhal.h>
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#include <string.h>
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#include <sys/select.h>
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#include "input.h"
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#include "inputstr.h"
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#include "hotplug.h"
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#include "config-backends.h"
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#include "os.h"
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#define LIBHAL_PROP_KEY "input.x11_options."
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#define LIBHAL_XKB_PROP_KEY "input.xkb."
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struct config_hal_info {
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DBusConnection *system_bus;
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LibHalContext *hal_ctx;
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};
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/* Used for special handling of xkb options. */
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struct xkb_options {
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char *layout;
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char *model;
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char *rules;
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char *variant;
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char *options;
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};
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static void
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device_removed(LibHalContext * ctx, const char *udi)
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{
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char *value;
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if (asprintf(&value, "hal:%s", udi) == -1)
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return;
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remove_devices("hal", value);
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free(value);
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}
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static char *
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get_prop_string(LibHalContext * hal_ctx, const char *udi, const char *name)
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{
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char *prop, *ret;
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prop = libhal_device_get_property_string(hal_ctx, udi, name, NULL);
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LogMessageVerb(X_INFO, 10, "config/hal: getting %s on %s returned %s\n",
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name, udi, prop ? prop : "(null)");
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if (prop) {
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ret = strdup(prop);
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libhal_free_string(prop);
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}
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else {
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return NULL;
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}
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return ret;
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}
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static char *
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get_prop_string_array(LibHalContext * hal_ctx, const char *udi,
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const char *prop)
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{
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char **props, *ret, *str;
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int i, len = 0;
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props = libhal_device_get_property_strlist(hal_ctx, udi, prop, NULL);
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if (props) {
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for (i = 0; props[i]; i++)
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len += strlen(props[i]);
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ret = calloc(sizeof(char), len + i); /* i - 1 commas, 1 NULL */
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if (!ret) {
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libhal_free_string_array(props);
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return NULL;
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}
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str = ret;
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for (i = 0; props[i]; i++) {
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strcpy(str, props[i]);
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str += strlen(props[i]);
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*str++ = ',';
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}
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*(str - 1) = '\0';
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libhal_free_string_array(props);
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}
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else {
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return NULL;
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}
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return ret;
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}
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static void
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device_added(LibHalContext * hal_ctx, const char *udi)
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{
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char *path = NULL, *driver = NULL, *name = NULL, *config_info = NULL;
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char *hal_tags, *parent;
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InputOption *input_options = NULL;
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InputAttributes attrs = { 0 };
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DeviceIntPtr dev = NULL;
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DBusError error;
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struct xkb_options xkb_opts = { 0 };
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int rc;
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LibHalPropertySet *set = NULL;
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LibHalPropertySetIterator set_iter;
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char *psi_key = NULL, *tmp_val;
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dbus_error_init(&error);
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driver = get_prop_string(hal_ctx, udi, "input.x11_driver");
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if (!driver) {
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/* verbose, don't tell the user unless they _want_ to see it */
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LogMessageVerb(X_INFO, 7,
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"config/hal: no driver specified for device %s\n", udi);
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goto unwind;
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}
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path = get_prop_string(hal_ctx, udi, "input.device");
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if (!path) {
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LogMessage(X_WARNING,
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"config/hal: no driver or path specified for %s\n", udi);
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goto unwind;
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}
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attrs.device = strdup(path);
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name = get_prop_string(hal_ctx, udi, "info.product");
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if (!name)
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name = strdup("(unnamed)");
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else
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attrs.product = strdup(name);
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attrs.vendor = get_prop_string(hal_ctx, udi, "info.vendor");
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hal_tags = get_prop_string(hal_ctx, udi, "input.tags");
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attrs.tags = xstrtokenize(hal_tags, ",");
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free(hal_tags);
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if (libhal_device_query_capability(hal_ctx, udi, "input.keys", NULL))
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attrs.flags |= ATTR_KEYBOARD;
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if (libhal_device_query_capability(hal_ctx, udi, "input.mouse", NULL))
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attrs.flags |= ATTR_POINTER;
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if (libhal_device_query_capability(hal_ctx, udi, "input.joystick", NULL))
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attrs.flags |= ATTR_JOYSTICK;
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if (libhal_device_query_capability(hal_ctx, udi, "input.tablet", NULL))
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attrs.flags |= ATTR_TABLET;
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if (libhal_device_query_capability(hal_ctx, udi, "input.touchpad", NULL))
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attrs.flags |= ATTR_TOUCHPAD;
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if (libhal_device_query_capability(hal_ctx, udi, "input.touchscreen", NULL))
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attrs.flags |= ATTR_TOUCHSCREEN;
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parent = get_prop_string(hal_ctx, udi, "info.parent");
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if (parent) {
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int usb_vendor, usb_product;
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attrs.pnp_id = get_prop_string(hal_ctx, parent, "pnp.id");
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/* construct USB ID in lowercase - "0000:ffff" */
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usb_vendor = libhal_device_get_property_int(hal_ctx, parent,
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"usb.vendor_id", NULL);
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LogMessageVerb(X_INFO, 10,
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"config/hal: getting usb.vendor_id on %s "
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"returned %04x\n", parent, usb_vendor);
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usb_product = libhal_device_get_property_int(hal_ctx, parent,
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"usb.product_id", NULL);
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LogMessageVerb(X_INFO, 10,
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"config/hal: getting usb.product_id on %s "
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"returned %04x\n", parent, usb_product);
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if (usb_vendor && usb_product)
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if (asprintf(&attrs.usb_id, "%04x:%04x", usb_vendor, usb_product)
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== -1)
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attrs.usb_id = NULL;
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free(parent);
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}
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input_options = input_option_new(NULL, "_source", "server/hal");
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if (!input_options) {
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LogMessage(X_ERROR,
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"config/hal: couldn't allocate first key/value pair\n");
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goto unwind;
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}
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/* most drivers use device.. not path. evdev uses both however, but the
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* path version isn't documented apparently. support both for now. */
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input_options = input_option_new(input_options, "path", path);
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input_options = input_option_new(input_options, "device", path);
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input_options = input_option_new(input_options, "driver", driver);
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input_options = input_option_new(input_options, "name", name);
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if (asprintf(&config_info, "hal:%s", udi) == -1) {
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config_info = NULL;
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LogMessage(X_ERROR, "config/hal: couldn't allocate name\n");
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goto unwind;
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}
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/* Check for duplicate devices */
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if (device_is_duplicate(config_info)) {
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LogMessage(X_WARNING,
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"config/hal: device %s already added. Ignoring.\n", name);
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goto unwind;
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}
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/* ok, grab options from hal.. iterate through all properties
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* and lets see if any of them are options that we can add */
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set = libhal_device_get_all_properties(hal_ctx, udi, &error);
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if (!set) {
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LogMessage(X_ERROR,
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"config/hal: couldn't get property list for %s: %s (%s)\n",
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udi, error.name, error.message);
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goto unwind;
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}
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libhal_psi_init(&set_iter, set);
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while (libhal_psi_has_more(&set_iter)) {
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/* we are looking for supported keys.. extract and add to options */
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psi_key = libhal_psi_get_key(&set_iter);
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if (psi_key) {
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/* normal options first (input.x11_options.<propname>) */
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if (!strncasecmp
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(psi_key, LIBHAL_PROP_KEY, sizeof(LIBHAL_PROP_KEY) - 1)) {
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char *tmp;
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/* only support strings for all values */
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tmp_val = get_prop_string(hal_ctx, udi, psi_key);
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if (tmp_val) {
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/* xkb needs special handling. HAL specs include
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* input.xkb.xyz options, but the x11-input.fdi specifies
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* input.x11_options.Xkbxyz options. By default, we use
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* the former, unless the specific X11 ones are specified.
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* Since we can't predict the order in which the keys
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* arrive, we need to store them.
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*/
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if ((tmp = strcasestr(psi_key, "xkb")) && strlen(tmp) >= 4) {
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if (!strcasecmp(&tmp[3], "layout")) {
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free(xkb_opts.layout);
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xkb_opts.layout = strdup(tmp_val);
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}
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else if (!strcasecmp(&tmp[3], "model")) {
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free(xkb_opts.model);
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xkb_opts.model = strdup(tmp_val);
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}
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else if (!strcasecmp(&tmp[3], "rules")) {
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free(xkb_opts.rules);
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xkb_opts.rules = strdup(tmp_val);
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}
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else if (!strcasecmp(&tmp[3], "variant")) {
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free(xkb_opts.variant);
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xkb_opts.variant = strdup(tmp_val);
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}
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else if (!strcasecmp(&tmp[3], "options")) {
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free(xkb_opts.options);
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xkb_opts.options = strdup(tmp_val);
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}
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}
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else {
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/* all others */
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input_options =
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input_option_new(input_options,
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psi_key + sizeof(LIBHAL_PROP_KEY) -
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1, tmp_val);
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free(tmp_val);
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}
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}
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else {
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/* server 1.4 had xkb_options as strlist. */
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if ((tmp = strcasestr(psi_key, "xkb")) &&
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(strlen(tmp) >= 4) &&
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(!strcasecmp(&tmp[3], "options")) &&
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(tmp_val =
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get_prop_string_array(hal_ctx, udi, psi_key))) {
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free(xkb_opts.options);
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xkb_opts.options = strdup(tmp_val);
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}
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}
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}
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else if (!strncasecmp
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(psi_key, LIBHAL_XKB_PROP_KEY,
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sizeof(LIBHAL_XKB_PROP_KEY) - 1)) {
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char *tmp;
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/* only support strings for all values */
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tmp_val = get_prop_string(hal_ctx, udi, psi_key);
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if (tmp_val && strlen(psi_key) >= sizeof(LIBHAL_XKB_PROP_KEY)) {
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tmp = &psi_key[sizeof(LIBHAL_XKB_PROP_KEY) - 1];
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if (!strcasecmp(tmp, "layout")) {
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if (!xkb_opts.layout)
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xkb_opts.layout = strdup(tmp_val);
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}
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else if (!strcasecmp(tmp, "rules")) {
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if (!xkb_opts.rules)
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xkb_opts.rules = strdup(tmp_val);
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}
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else if (!strcasecmp(tmp, "variant")) {
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if (!xkb_opts.variant)
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xkb_opts.variant = strdup(tmp_val);
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}
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else if (!strcasecmp(tmp, "model")) {
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if (!xkb_opts.model)
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xkb_opts.model = strdup(tmp_val);
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}
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else if (!strcasecmp(tmp, "options")) {
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if (!xkb_opts.options)
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xkb_opts.options = strdup(tmp_val);
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}
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free(tmp_val);
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}
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else {
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/* server 1.4 had xkb options as strlist */
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tmp_val = get_prop_string_array(hal_ctx, udi, psi_key);
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if (tmp_val &&
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strlen(psi_key) >= sizeof(LIBHAL_XKB_PROP_KEY)) {
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tmp = &psi_key[sizeof(LIBHAL_XKB_PROP_KEY) - 1];
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if (!strcasecmp(tmp, ".options") && (!xkb_opts.options))
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xkb_opts.options = strdup(tmp_val);
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}
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free(tmp_val);
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}
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}
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}
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/* psi_key doesn't need to be freed */
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libhal_psi_next(&set_iter);
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}
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/* Now add xkb options */
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if (xkb_opts.layout)
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input_options =
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input_option_new(input_options, "xkb_layout", xkb_opts.layout);
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if (xkb_opts.rules)
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input_options =
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input_option_new(input_options, "xkb_rules", xkb_opts.rules);
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if (xkb_opts.variant)
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input_options =
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input_option_new(input_options, "xkb_variant", xkb_opts.variant);
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if (xkb_opts.model)
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input_options =
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input_option_new(input_options, "xkb_model", xkb_opts.model);
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if (xkb_opts.options)
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input_options =
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input_option_new(input_options, "xkb_options", xkb_opts.options);
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input_options = input_option_new(input_options, "config_info", config_info);
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/* this isn't an error, but how else do you output something that the user can see? */
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LogMessage(X_INFO, "config/hal: Adding input device %s\n", name);
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if ((rc = NewInputDeviceRequest(input_options, &attrs, &dev)) != Success) {
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LogMessage(X_ERROR, "config/hal: NewInputDeviceRequest failed (%d)\n",
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rc);
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dev = NULL;
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goto unwind;
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}
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unwind:
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if (set)
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libhal_free_property_set(set);
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free(path);
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free(driver);
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free(name);
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free(config_info);
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input_option_free_list(&input_options);
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free(attrs.product);
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free(attrs.vendor);
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free(attrs.device);
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free(attrs.pnp_id);
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free(attrs.usb_id);
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if (attrs.tags) {
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char **tag = attrs.tags;
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while (*tag) {
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free(*tag);
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tag++;
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}
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free(attrs.tags);
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}
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free(xkb_opts.layout);
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free(xkb_opts.rules);
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free(xkb_opts.model);
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free(xkb_opts.variant);
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free(xkb_opts.options);
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dbus_error_free(&error);
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return;
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}
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static void
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disconnect_hook(void *data)
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{
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DBusError error;
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struct config_hal_info *info = data;
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if (info->hal_ctx) {
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if (dbus_connection_get_is_connected(info->system_bus)) {
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dbus_error_init(&error);
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if (!libhal_ctx_shutdown(info->hal_ctx, &error))
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LogMessage(X_WARNING,
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"config/hal: disconnect_hook couldn't shut down context: %s (%s)\n",
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error.name, error.message);
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dbus_error_free(&error);
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}
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libhal_ctx_free(info->hal_ctx);
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}
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info->hal_ctx = NULL;
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info->system_bus = NULL;
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}
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static BOOL
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connect_and_register(DBusConnection * connection, struct config_hal_info *info)
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{
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DBusError error;
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char **devices;
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int num_devices, i;
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if (info->hal_ctx)
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return TRUE; /* already registered, pretend we did something */
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info->system_bus = connection;
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dbus_error_init(&error);
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info->hal_ctx = libhal_ctx_new();
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if (!info->hal_ctx) {
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LogMessage(X_ERROR, "config/hal: couldn't create HAL context\n");
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goto out_err;
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}
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if (!libhal_ctx_set_dbus_connection(info->hal_ctx, info->system_bus)) {
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LogMessage(X_ERROR,
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"config/hal: couldn't associate HAL context with bus\n");
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goto out_err;
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}
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if (!libhal_ctx_init(info->hal_ctx, &error)) {
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LogMessage(X_ERROR,
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"config/hal: couldn't initialise context: %s (%s)\n",
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error.name ? error.name : "unknown error",
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error.message ? error.message : "null");
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goto out_err;
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}
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if (!libhal_device_property_watch_all(info->hal_ctx, &error)) {
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LogMessage(X_ERROR,
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"config/hal: couldn't watch all properties: %s (%s)\n",
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error.name ? error.name : "unknown error",
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error.message ? error.message : "null");
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goto out_ctx;
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}
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libhal_ctx_set_device_added(info->hal_ctx, device_added);
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libhal_ctx_set_device_removed(info->hal_ctx, device_removed);
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devices = libhal_find_device_by_capability(info->hal_ctx, "input",
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&num_devices, &error);
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/* FIXME: Get default devices if error is set. */
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if (dbus_error_is_set(&error)) {
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LogMessage(X_ERROR, "config/hal: couldn't find input device: %s (%s)\n",
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error.name ? error.name : "unknown error",
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|
error.message ? error.message : "null");
|
|
goto out_ctx;
|
|
}
|
|
for (i = 0; i < num_devices; i++)
|
|
device_added(info->hal_ctx, devices[i]);
|
|
libhal_free_string_array(devices);
|
|
|
|
dbus_error_free(&error);
|
|
|
|
return TRUE;
|
|
|
|
out_ctx:
|
|
dbus_error_free(&error);
|
|
|
|
if (!libhal_ctx_shutdown(info->hal_ctx, &error)) {
|
|
LogMessage(X_WARNING,
|
|
"config/hal: couldn't shut down context: %s (%s)\n",
|
|
error.name ? error.name : "unknown error",
|
|
error.message ? error.message : "null");
|
|
dbus_error_free(&error);
|
|
}
|
|
|
|
out_err:
|
|
dbus_error_free(&error);
|
|
|
|
if (info->hal_ctx) {
|
|
libhal_ctx_free(info->hal_ctx);
|
|
}
|
|
|
|
info->hal_ctx = NULL;
|
|
info->system_bus = NULL;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* Handle NewOwnerChanged signals to deal with HAL startup at X server runtime.
|
|
*
|
|
* NewOwnerChanged is send once when HAL shuts down, and once again when it
|
|
* comes back up. Message has three arguments, first is the name
|
|
* (org.freedesktop.Hal), the second one is the old owner, third one is new
|
|
* owner.
|
|
*/
|
|
static DBusHandlerResult
|
|
ownerchanged_handler(DBusConnection * connection, DBusMessage * message,
|
|
void *data)
|
|
{
|
|
int ret = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
|
|
if (dbus_message_is_signal(message,
|
|
"org.freedesktop.DBus", "NameOwnerChanged")) {
|
|
DBusError error;
|
|
char *name, *old_owner, *new_owner;
|
|
|
|
dbus_error_init(&error);
|
|
dbus_message_get_args(message, &error,
|
|
DBUS_TYPE_STRING, &name,
|
|
DBUS_TYPE_STRING, &old_owner,
|
|
DBUS_TYPE_STRING, &new_owner, DBUS_TYPE_INVALID);
|
|
|
|
if (dbus_error_is_set(&error)) {
|
|
ErrorF
|
|
("[config/hal] failed to get NameOwnerChanged args: %s (%s)\n",
|
|
error.name, error.message);
|
|
}
|
|
else if (name && strcmp(name, "org.freedesktop.Hal") == 0) {
|
|
|
|
if (!old_owner || !strlen(old_owner)) {
|
|
DebugF("[config/hal] HAL startup detected.\n");
|
|
if (connect_and_register
|
|
(connection, (struct config_hal_info *) data))
|
|
dbus_connection_unregister_object_path(connection,
|
|
"/org/freedesktop/DBus");
|
|
else
|
|
ErrorF("[config/hal] Failed to connect to HAL bus.\n");
|
|
}
|
|
|
|
ret = DBUS_HANDLER_RESULT_HANDLED;
|
|
}
|
|
dbus_error_free(&error);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Register a handler for the NameOwnerChanged signal.
|
|
*/
|
|
static BOOL
|
|
listen_for_startup(DBusConnection * connection, void *data)
|
|
{
|
|
DBusObjectPathVTable vtable = {.message_function = ownerchanged_handler, };
|
|
DBusError error;
|
|
const char MATCH_RULE[] = "sender='org.freedesktop.DBus',"
|
|
"interface='org.freedesktop.DBus',"
|
|
"type='signal',"
|
|
"path='/org/freedesktop/DBus'," "member='NameOwnerChanged'";
|
|
int rc = FALSE;
|
|
|
|
dbus_error_init(&error);
|
|
dbus_bus_add_match(connection, MATCH_RULE, &error);
|
|
if (!dbus_error_is_set(&error)) {
|
|
if (dbus_connection_register_object_path(connection,
|
|
"/org/freedesktop/DBus",
|
|
&vtable, data))
|
|
rc = TRUE;
|
|
else
|
|
ErrorF("[config/hal] cannot register object path.\n");
|
|
}
|
|
else {
|
|
ErrorF("[config/hal] couldn't add match rule: %s (%s)\n", error.name,
|
|
error.message);
|
|
ErrorF("[config/hal] cannot detect a HAL startup.\n");
|
|
}
|
|
|
|
dbus_error_free(&error);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
connect_hook(DBusConnection * connection, void *data)
|
|
{
|
|
struct config_hal_info *info = data;
|
|
|
|
if (listen_for_startup(connection, data) &&
|
|
connect_and_register(connection, info))
|
|
dbus_connection_unregister_object_path(connection,
|
|
"/org/freedesktop/DBus");
|
|
|
|
return;
|
|
}
|
|
|
|
static struct config_hal_info hal_info;
|
|
|
|
static struct config_dbus_core_hook hook = {
|
|
.connect = connect_hook,
|
|
.disconnect = disconnect_hook,
|
|
.data = &hal_info,
|
|
};
|
|
|
|
int
|
|
config_hal_init(void)
|
|
{
|
|
memset(&hal_info, 0, sizeof(hal_info));
|
|
hal_info.system_bus = NULL;
|
|
hal_info.hal_ctx = NULL;
|
|
|
|
if (!config_dbus_core_add_hook(&hook)) {
|
|
LogMessage(X_ERROR, "config/hal: failed to add D-Bus hook\n");
|
|
return 0;
|
|
}
|
|
|
|
/* verbose message */
|
|
LogMessageVerb(X_INFO, 7, "config/hal: initialized\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
config_hal_fini(void)
|
|
{
|
|
config_dbus_core_remove_hook(&hook);
|
|
}
|