diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2007-01-28 18:06:45 +0000 | 
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2007-01-28 18:06:45 +0000 | 
| commit | 6a5605954320fe1d43fa6957e07ec4bcc9724454 (patch) | |
| tree | 297c51d778bed262a93cb0700b8cd6c1872adc05 /input/device.c | |
| parent | f84e31fac1a1f7cf602afac6688bb4b9b02babb9 (diff) | |
Rename input-service.[ch] into device.[ch]
Diffstat (limited to 'input/device.c')
| -rw-r--r-- | input/device.c | 1450 | 
1 files changed, 1450 insertions, 0 deletions
| diff --git a/input/device.c b/input/device.c new file mode 100644 index 00000000..421b6c20 --- /dev/null +++ b/input/device.c @@ -0,0 +1,1450 @@ +/* + * + *  BlueZ - Bluetooth protocol stack for Linux + * + *  Copyright (C) 2004-2007  Marcel Holtmann <marcel@holtmann.org> + * + * + *  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 <config.h> +#endif + +#include <stdlib.h> +#include <errno.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <sys/socket.h> +  +#include <bluetooth/bluetooth.h> +#include <bluetooth/hci.h> +#include <bluetooth/hci_lib.h> +#include <bluetooth/l2cap.h> +#include <bluetooth/sdp.h> +#include <bluetooth/sdp_lib.h> +#include <bluetooth/hidp.h> + +#include <glib.h> + +#include <dbus/dbus.h> + +#include "dbus.h" +#include "logging.h" +#include "textfile.h" + +#include "storage.h" +#include "device.h" + +#define INPUT_PATH "/org/bluez/input" +#define INPUT_MANAGER_INTERFACE	"org.bluez.input.Manager" +#define INPUT_DEVICE_INTERFACE	"org.bluez.input.Device" +#define INPUT_ERROR_INTERFACE	"org.bluez.Error" + +#define L2CAP_PSM_HIDP_CTRL		0x11 +#define L2CAP_PSM_HIDP_INTR		0x13 + +static DBusConnection *connection = NULL; + +const char *pnp_uuid = "00001200-0000-1000-8000-00805f9b34fb"; +const char *hid_uuid = "00001124-0000-1000-8000-00805f9b34fb"; + +struct input_device { +	bdaddr_t dst; +	struct hidp_connadd_req hidp; +}; + +struct input_manager { +	bdaddr_t src;		/* Local adapter BT address */ +	GSList *paths;		/* Input registered paths */ +}; + +struct pending_req { +	char *adapter_path;	/* Local adapter D-Bus path */ +	bdaddr_t src;		/* Local adapter BT address */ +	bdaddr_t dst;		/* Peer BT address */ +	DBusConnection *conn; +	DBusMessage *msg; +	sdp_record_t *pnp_rec; +	sdp_record_t *hid_rec; +}; + +struct pending_connect { +	bdaddr_t src; +	bdaddr_t dst; +	DBusConnection *conn; +	DBusMessage *msg; +}; + +static struct input_device *input_device_new(bdaddr_t *dst) +{ +	struct input_device *idev; + +	idev = malloc(sizeof(struct input_device)); +	if (!idev) +		return NULL; + +	memset(idev, 0, sizeof(struct input_device)); + +	bacpy(&idev->dst, dst); + +	return idev; +} + +static void input_device_free(struct input_device *idev) +{ +	if (!idev) +		return; +	if (idev->hidp.rd_data) +		free(idev->hidp.rd_data); +	free(idev); +} + +static struct pending_req *pending_req_new(DBusConnection *conn, +				DBusMessage *msg, const char *adapter_path, +						bdaddr_t *src, bdaddr_t *dst) +{ +	struct pending_req *pr; +	pr = malloc(sizeof(struct pending_req)); +	if (!pr) +		return NULL; + +	memset(pr, 0, sizeof(struct pending_req)); +	pr->adapter_path = strdup(adapter_path); +	bacpy(&pr->src, src); +	bacpy(&pr->dst, dst); +	pr->conn = dbus_connection_ref(conn); +	pr->msg = dbus_message_ref(msg); + +	return pr; +} + +static void pending_req_free(struct pending_req *pr) +{ +	if (!pr) +		return; +	if (pr->adapter_path) +		free(pr->adapter_path); +	if (pr->conn) +		dbus_connection_unref(pr->conn); +	if (pr->msg) +		dbus_message_unref(pr->msg); +	if (pr->pnp_rec) +		sdp_record_free(pr->pnp_rec); +	if (pr->hid_rec) +		sdp_record_free(pr->hid_rec); +	free(pr); +} + +static struct pending_connect *pending_connect_new(bdaddr_t *src, bdaddr_t *dst, +					DBusConnection *conn, DBusMessage *msg) +{ +	struct pending_connect *pc; +	pc = malloc(sizeof(struct pending_connect)); +	if (!pc) +		return NULL; + +	memset(pc, 0, sizeof(struct pending_connect)); +	bacpy(&pc->src, src); +	bacpy(&pc->dst, dst); +	pc->conn = dbus_connection_ref(conn); +	pc->msg = dbus_message_ref(msg); + +	return pc; +} + +static void pending_connect_free(struct pending_connect *pc) +{ +	if (!pc) +		return; +	if (pc->conn) +		dbus_connection_unref(pc->conn); +	if (pc->msg) +		dbus_message_unref(pc->msg); +	free(pc); +} + +/* + * Common D-Bus BlueZ input error functions + */ +static DBusHandlerResult err_unknown_device(DBusConnection *conn, DBusMessage *msg) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, +				INPUT_ERROR_INTERFACE ".UnknownDevice", +				"Invalid device")); +} + +static DBusHandlerResult err_unknown_method(DBusConnection *conn, DBusMessage *msg) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, +				INPUT_ERROR_INTERFACE ".UnknownMethod", +				"Unknown input method")); +} + +static DBusHandlerResult err_failed(DBusConnection *conn, DBusMessage *msg, +				const char *str) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, +				INPUT_ERROR_INTERFACE ".Failed", str)); +} + +static DBusHandlerResult err_connection_failed(DBusConnection *conn, +					DBusMessage *msg, const char *str) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, +				INPUT_ERROR_INTERFACE".ConnectionAttemptFailed", +				str)); +} + +static DBusHandlerResult err_already_exists(DBusConnection *conn, +				DBusMessage *msg, const char *str) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, +				INPUT_ERROR_INTERFACE ".AlreadyExists", str)); +} + +static DBusHandlerResult err_does_not_exist(DBusConnection *conn, +				DBusMessage *msg, const char *str) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, +				INPUT_ERROR_INTERFACE ".DoesNotExist", str)); +} + +static DBusHandlerResult err_generic(DBusConnection *conn, DBusMessage *msg, +				const char *name, const char *str) +{ +	return send_message_and_unref(conn, +			dbus_message_new_error(msg, name, str)); + +} + +static void extract_hid_record(sdp_record_t *rec, struct hidp_connadd_req *req) +{ +	sdp_data_t *pdlist, *pdlist2; +	uint8_t attr_val; + +	pdlist = sdp_data_get(rec, 0x0101); +	pdlist2 = sdp_data_get(rec, 0x0102); +	if (pdlist) { +		if (pdlist2) { +			if (strncmp(pdlist->val.str, pdlist2->val.str, 5)) { +				strncpy(req->name, pdlist2->val.str, 127); +				strcat(req->name, " "); +			} +			strncat(req->name, pdlist->val.str, 127 - strlen(req->name)); +		} else +			strncpy(req->name, pdlist->val.str, 127); +	} else { +		pdlist2 = sdp_data_get(rec, 0x0100); +		if (pdlist2) +			strncpy(req->name, pdlist2->val.str, 127); + 	} +  +	pdlist = sdp_data_get(rec, 0x0201); +	req->parser = pdlist ? pdlist->val.uint16 : 0x0100; +  +	pdlist = sdp_data_get(rec, 0x0202); +	req->subclass = pdlist ? pdlist->val.uint8 : 0; + +	pdlist = sdp_data_get(rec, 0x0203); +	req->country = pdlist ? pdlist->val.uint8 : 0; + +	pdlist = sdp_data_get(rec, 0x0204); +	attr_val = pdlist ? pdlist->val.uint8 : 0; +	if (attr_val) +		req->flags |= (1 << HIDP_VIRTUAL_CABLE_UNPLUG); + +	pdlist = sdp_data_get(rec, 0x020E); +	attr_val = pdlist ? pdlist->val.uint8 : 0; +	if (attr_val) +		req->flags |= (1 << HIDP_BOOT_PROTOCOL_MODE); + +	pdlist = sdp_data_get(rec, 0x0206); +	if (pdlist) { +		pdlist = pdlist->val.dataseq; +		pdlist = pdlist->val.dataseq; +		pdlist = pdlist->next; + +		req->rd_data = malloc(pdlist->unitSize); +		if (req->rd_data) { +			memcpy(req->rd_data, (unsigned char *) pdlist->val.str, pdlist->unitSize); +			req->rd_size = pdlist->unitSize; +		} +	} +} + +static void extract_pnp_record(sdp_record_t *rec, struct hidp_connadd_req *req) +{ +	sdp_data_t *pdlist; + +	pdlist = sdp_data_get(rec, 0x0201); +	req->vendor = pdlist ? pdlist->val.uint16 : 0x0000; + +	pdlist = sdp_data_get(rec, 0x0202); +	req->product = pdlist ? pdlist->val.uint16 : 0x0000; + +	pdlist = sdp_data_get(rec, 0x0203); +	req->version = pdlist ? pdlist->val.uint16 : 0x0000; +} + +static const char *create_input_path(uint8_t minor) +{ +	static char path[48]; +	char subpath[32]; +	static int next_id = 0; + +	switch (minor & 0xc0) { +	case 0x40: +		strcpy(subpath, "keyboard"); +		break; +	case 0x80: +		strcpy(subpath, "pointing"); +		break; +	case 0xc0: +		strcpy(subpath, "combo"); +		break; +	default: +		subpath[0] = '\0'; +		break; +	} + +	if ((minor & 0x3f) && (strlen(subpath) > 0)) +		strcat(subpath, "/"); + +	switch (minor & 0x3f) { +	case 0x00: +		break; +	case 0x01: +		strcat(subpath, "joystick"); +		break; +	case 0x02: +		strcat(subpath, "gamepad"); +		break; +	case 0x03: +		strcat(subpath, "remotecontrol"); +		break; +	case 0x04: +		strcat(subpath, "sensing"); +		break; +	case 0x05: +		strcat(subpath, "digitizertablet"); +		break; +	case 0x06: +		strcat(subpath, "cardreader"); +		break; +	default: +		strcat(subpath, "reserved"); +		break; +	} + +	snprintf(path, 48, "%s/%s%d", INPUT_PATH, subpath, next_id++); +	return path; +} + +static int l2cap_connect(struct pending_connect *pc, +					unsigned short psm, GIOFunc cb) +{ +	GIOChannel *io; +	struct sockaddr_l2 addr; +	struct l2cap_options opts; +	int sk, err; + +	if ((sk = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP)) < 0) +		return -1; + +	memset(&addr, 0, sizeof(addr)); +	addr.l2_family  = AF_BLUETOOTH; +	bacpy(&addr.l2_bdaddr, &pc->src); + +	if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) +		goto failed; + +	if (set_nonblocking(sk) < 0) +		goto failed; + +	memset(&opts, 0, sizeof(opts)); +	opts.imtu = HIDP_DEFAULT_MTU; +	opts.omtu = HIDP_DEFAULT_MTU; +	opts.flush_to = 0xffff; + +	if (setsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, sizeof(opts)) < 0) +		goto failed; + +	memset(&addr, 0, sizeof(addr)); +	addr.l2_family  = AF_BLUETOOTH; +	bacpy(&addr.l2_bdaddr, &pc->dst); +	addr.l2_psm = htobs(psm); + +	io = g_io_channel_unix_new(sk); +	g_io_channel_set_close_on_unref(io, FALSE); + +	if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) { +		if (!(errno == EAGAIN || errno == EINPROGRESS)) +			goto failed; + +		g_io_add_watch(io, G_IO_OUT, (GIOFunc) cb, pc); +	} else { +		cb(io, G_IO_OUT, pc); +	} + +	return 0; + +failed: +	err = errno; +	close(sk); +	errno = err; + +	return -1; +} + +static gboolean interrupt_connect_cb(GIOChannel *chan, GIOCondition cond, +						struct pending_connect *pc) +{ +	struct input_device *idev; +	int ctl, isk, ret, err; +	socklen_t len; +	const char *path; + +	path = dbus_message_get_path(pc->msg); +	dbus_connection_get_object_path_data(pc->conn, path, (void *) &idev); + +	if (cond & G_IO_NVAL) { +		err = EHOSTDOWN; +		isk = -1; +		goto failed; +	} + +	isk = g_io_channel_unix_get_fd(chan); +	idev->hidp.intr_sock = isk; +	idev->hidp.idle_to = 30 * 60;	/* 30 minutes */ + +	len = sizeof(ret); +	if (getsockopt(isk, SOL_SOCKET, SO_ERROR, &ret, &len) < 0) { +		err = errno; +		error("getsockopt(SO_ERROR): %s (%d)", strerror(err), err); +		goto failed; +	} + +	if (ret != 0) { +		err = ret; +		error("connect(): %s (%d)", strerror(ret), ret); +		goto failed; +	} + +	ctl = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HIDP); +	if (ctl < 0) { +		err = errno; +		error("Can't open HIDP control socket"); +		goto failed; +	} + +	if (idev->hidp.subclass & 0x40) { +		err = encrypt_link(&pc->src, &pc->dst); +		if (err < 0) { +			close(ctl); +			goto failed; +		} +	} + +	if (ioctl(ctl, HIDPCONNADD, &idev->hidp) < 0) { +		err = errno; +		close(ctl); +		goto failed; +	} + + +	send_message_and_unref(pc->conn, +			dbus_message_new_method_return(pc->msg)); + +	close (ctl); +	goto cleanup; +failed: +	err_connection_failed(pc->conn, pc->msg, strerror(err)); + +cleanup: +	if (isk > 0) +		close(isk); + +	close(idev->hidp.ctrl_sock); + +	idev->hidp.intr_sock = -1; +	idev->hidp.ctrl_sock = -1; + +	pending_connect_free(pc); +	g_io_channel_unref(chan); + +	return FALSE; +} + +static gboolean control_connect_cb(GIOChannel *chan, GIOCondition cond, +						struct pending_connect *pc) +{ +	struct input_device *idev; +	int ret, csk, err; +	socklen_t len; +	const char *path; + +	path = dbus_message_get_path(pc->msg); +	dbus_connection_get_object_path_data(pc->conn, path, (void *) &idev); + +	if (cond & G_IO_NVAL) { +		err = EHOSTDOWN; +		csk = -1; +		goto failed; +	} + +	csk = g_io_channel_unix_get_fd(chan); +	/* Set HID control channel */ +	idev->hidp.ctrl_sock = csk; + +	len = sizeof(ret); +	if (getsockopt(csk, SOL_SOCKET, SO_ERROR, &ret, &len) < 0) { +		err = errno; +		error("getsockopt(SO_ERROR): %s (%d)", strerror(err), err); +		goto failed; +	} + +	if (ret != 0) { +		err = ret; +		error("connect(): %s (%d)", strerror(ret), ret); +		goto failed; +	} + +	/* Connect to the HID interrupt channel */ +	if (l2cap_connect(pc, L2CAP_PSM_HIDP_INTR, +			(GIOFunc) interrupt_connect_cb) < 0) { + +		err = errno; +		error("L2CAP connect failed:%s (%d)", strerror(errno), errno); +		goto failed; +	} + +	g_io_channel_unref(chan); +	return FALSE; + +failed: +	if (csk > 0) +		close(csk); + +	idev->hidp.ctrl_sock = -1; +	err_connection_failed(pc->conn, pc->msg, strerror(err)); +	pending_connect_free(pc); +	g_io_channel_unref(chan); + +	return FALSE; +} + +static int disconnect(struct input_device *idev,  uint32_t flags) +{ +	struct hidp_conndel_req req; +	struct hidp_conninfo ci; +	int ctl, err; + +	ctl = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HIDP); +	if (ctl < 0) { +		error("Can't open HIDP control socket"); +		return -errno; +	} + +	memset(&ci, 0, sizeof(struct hidp_conninfo)); +	bacpy(&ci.bdaddr, &idev->dst); +	if ((ioctl(ctl, HIDPGETCONNINFO, &ci) < 0) || +				(ci.state != BT_CONNECTED)) { +		errno = ENOTCONN; +		goto fail; +	} + +	memset(&req, 0, sizeof(struct hidp_conndel_req)); +	bacpy(&req.bdaddr, &idev->dst); +	req.flags = flags; +	if (ioctl(ctl, HIDPCONNDEL, &req) < 0) { +		error("Can't delete the HID device: %s(%d)", +				strerror(errno), errno); +		goto fail; +	} + +	close(ctl); + +	return 0; +fail: +	err = errno; +	close(ctl); +	errno = err; + +	idev->hidp.intr_sock = -1; +	idev->hidp.ctrl_sock = -1; + +	return -errno; +} + +static int is_connected(bdaddr_t *dst) +{ +	struct hidp_conninfo ci; +	int ctl; + +	ctl = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HIDP); +	if (ctl < 0) +		return 0; + +	memset(&ci, 0, sizeof(struct hidp_conninfo)); +	bacpy(&ci.bdaddr, dst); +	if (ioctl(ctl, HIDPGETCONNINFO, &ci) < 0) { +		close(ctl); +		return 0; +	} + +	close(ctl); + +	if (ci.state != BT_CONNECTED) +		return 0; +	else +		return 1; +} + +/* + * Input Device methods + */ +static DBusHandlerResult device_connect(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; +	struct input_manager *mgr; +	struct pending_connect *pc; + +	if (is_connected(&idev->dst)) +		return err_connection_failed(conn, msg, "Already connected"); + +	dbus_connection_get_object_path_data(conn, INPUT_PATH, (void *) &mgr); +	pc = pending_connect_new(&mgr->src, &idev->dst, conn, msg); +	if (!pc) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	if (l2cap_connect(pc, L2CAP_PSM_HIDP_CTRL, +			(GIOFunc) control_connect_cb) < 0) { +		error("L2CAP connect failed: %s(%d)", strerror(errno), errno); +		pending_connect_free(pc); +		return err_connection_failed(conn, msg, strerror(errno)); +	} + +	return DBUS_HANDLER_RESULT_HANDLED; +} + +static DBusHandlerResult device_disconnect(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; + +	if (disconnect(idev, 0) < 0) +		return err_failed(conn, msg, strerror(errno)); + +	return send_message_and_unref(conn, +			dbus_message_new_method_return(msg)); +} + +static DBusHandlerResult device_is_connected(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; +	DBusMessage *reply; +	dbus_bool_t connected; + +	connected = is_connected(&idev->dst); +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	dbus_message_append_args(reply, +			DBUS_TYPE_BOOLEAN, &connected, +			DBUS_TYPE_INVALID); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult device_get_address(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; +	DBusMessage *reply; +	char addr[18]; +	const char *paddr = addr; + +	ba2str(&idev->dst, addr); + +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	dbus_message_append_args(reply, +			DBUS_TYPE_STRING, &paddr, +			DBUS_TYPE_INVALID); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult device_get_name(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; +	DBusMessage *reply; +	const char *pname = idev->hidp.name; + +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	dbus_message_append_args(reply, +			DBUS_TYPE_STRING, &pname, +			DBUS_TYPE_INVALID); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult device_get_product_id(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; +	DBusMessage *reply; + +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	dbus_message_append_args(reply, +			DBUS_TYPE_UINT16, &idev->hidp.product, +			DBUS_TYPE_INVALID); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult device_get_vendor_id(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_device *idev = data; +	DBusMessage *reply; + +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	dbus_message_append_args(reply, +			DBUS_TYPE_UINT16, &idev->hidp.vendor, +			DBUS_TYPE_INVALID); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult device_set_timeout(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; +} + +static DBusHandlerResult device_message(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	const char *iface, *member; + +	iface = dbus_message_get_interface(msg); +	member = dbus_message_get_member(msg); + +	/* Accept messages from the input interface only */ +	if (strcmp(INPUT_DEVICE_INTERFACE, iface)) +		return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + +	if (strcmp(member, "Connect") == 0) +		return device_connect(conn, msg, data); + +	if (strcmp(member, "Disconnect") == 0) +		return device_disconnect(conn, msg, data); + +	if (strcmp(member, "IsConnected") == 0) +		return device_is_connected(conn, msg, data); + +	if (strcmp(member, "GetAddress") == 0) +		return device_get_address(conn, msg, data); + +	if (strcmp(member, "GetName") == 0) +		return device_get_name(conn, msg, data); + +	if (strcmp(member, "GetProductId") == 0) +		return device_get_product_id(conn, msg, data); + +	if (strcmp(member, "GetVendorId") == 0) +		return device_get_vendor_id(conn, msg, data); + +	if (strcmp(member, "SetTimeout") == 0) +		return device_set_timeout(conn, msg, data); + +	return err_unknown_method(conn, msg); +} + +static void device_unregister(DBusConnection *conn, void *data) +{ +	input_device_free(data); +} + +/* Virtual table to handle device object path hierarchy */ +static const DBusObjectPathVTable device_table = { +	.message_function = device_message, +	.unregister_function = device_unregister, +}; + +/* + * Input Manager methods + */ +static void input_manager_free(struct input_manager *mgr) +{ +	if (!mgr) +		return; + +	if (mgr->paths) { +		g_slist_foreach(mgr->paths, (GFunc) free, NULL); +		g_slist_free(mgr->paths); +	} + +	free(mgr); +} + +static int register_input_device(DBusConnection *conn, +			struct input_device *idev, const char *path) +{ +	DBusMessage *msg; +	struct input_manager *mgr; + +	if (!dbus_connection_register_object_path(conn, +				path, &device_table, idev)) { +		error("Input device path registration failed"); +		return -1; +	} + +	dbus_connection_get_object_path_data(conn, INPUT_PATH, (void *) &mgr); +	mgr->paths = g_slist_append(mgr->paths, strdup(path)); + +	msg = dbus_message_new_signal(INPUT_PATH, +			INPUT_MANAGER_INTERFACE, "DeviceCreated"); +	if (!msg) +		return -1; + +	dbus_message_append_args(msg, +			DBUS_TYPE_STRING, &path, +			DBUS_TYPE_INVALID); + +	send_message_and_unref(conn, msg); + +	info("Created input device: %s", path); + +	return 0; +} + +static int unregister_input_device(DBusConnection *conn, const char *path) +{ +	DBusMessage *msg; + +	if (!dbus_connection_unregister_object_path(conn, path)) { +		error("Input device path unregister failed"); +		return -1; +	} + +	msg = dbus_message_new_signal(INPUT_PATH, +			INPUT_MANAGER_INTERFACE, "DeviceRemoved"); +	if (!msg) +		return -1; + +	dbus_message_append_args(msg, +			DBUS_TYPE_STRING, &path, +			DBUS_TYPE_INVALID); + +	send_message_and_unref(conn, msg); + +	return 0; +} + +static int path_bdaddr_cmp(const char *path, const bdaddr_t *bdaddr) +{ +	struct input_device *idev; + +	if (!dbus_connection_get_object_path_data(connection, path, +				(void *) &idev)) +		return -1; + +	if (!idev) +		return -1; + +	return bacmp(&idev->dst, bdaddr); +} + +static int get_record(struct pending_req *pr, uint32_t handle, +					DBusPendingCallNotifyFunction cb) +{ +	DBusMessage *msg; +	DBusPendingCall *pending; +	char addr[18]; +	const char *paddr = addr; + +	msg = dbus_message_new_method_call("org.bluez", pr->adapter_path, +			"org.bluez.Adapter", "GetRemoteServiceRecord"); +	if (!msg) +		return -1; + +	ba2str(&pr->dst, addr); +	dbus_message_append_args(msg, +			DBUS_TYPE_STRING, &paddr, +			DBUS_TYPE_UINT32, &handle, +			DBUS_TYPE_INVALID); + +	if (dbus_connection_send_with_reply(pr->conn, msg, &pending, -1) == FALSE) { +		error("Can't send D-Bus message."); +		return -1; +	} + +	dbus_pending_call_set_notify(pending, cb, pr, NULL); +	dbus_message_unref(msg); + +	return 0; +} + +static int get_handles(struct pending_req *pr, const char *uuid, +					DBusPendingCallNotifyFunction cb) +{ +	DBusMessage *msg; +	DBusPendingCall *pending; +	char addr[18]; +	const char *paddr = addr; + +	msg  = dbus_message_new_method_call("org.bluez", pr->adapter_path, +			"org.bluez.Adapter", "GetRemoteServiceHandles"); +	if (!msg) +		return -1; + +	ba2str(&pr->dst, addr); +	dbus_message_append_args(msg, +			DBUS_TYPE_STRING, &paddr, +			DBUS_TYPE_STRING, &uuid, +			DBUS_TYPE_INVALID); +	 +	if (dbus_connection_send_with_reply(pr->conn, msg, &pending, -1) == FALSE) { +		error("Can't send D-Bus message."); +		return -1; +	} + +	dbus_pending_call_set_notify(pending, cb, pr, NULL); +	dbus_message_unref(msg); + +	return 0; +} + +static void hid_record_reply(DBusPendingCall *call, void *data) +{ +	DBusMessage *reply = dbus_pending_call_steal_reply(call); +	DBusMessage *pr_reply; +	struct pending_req *pr = data; +	struct input_device *idev; +	DBusError derr; +	uint8_t *rec_bin; +	const char *path; +	int len, scanned; + +	dbus_error_init(&derr); +	if (dbus_set_error_from_message(&derr, reply)) { +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (!dbus_message_get_args(reply, &derr, +				DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &rec_bin, &len, +				DBUS_TYPE_INVALID)) { +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (len == 0) { +		err_failed(pr->conn, pr->msg, "SDP error"); +		goto fail; +	} + +	pr->hid_rec = sdp_extract_pdu(rec_bin, &scanned); +	if (!pr->hid_rec) { +		err_failed(pr->conn, pr->msg, "HID not supported"); +		goto fail; +	} + +	idev = input_device_new(&pr->dst); + +	extract_hid_record(pr->hid_rec, &idev->hidp); +	if (pr->pnp_rec) +		extract_pnp_record(pr->pnp_rec, &idev->hidp); + +	path = create_input_path(idev->hidp.subclass); + +	if (register_input_device(pr->conn, idev, path) < 0) { +		err_failed(pr->conn, pr->msg, "D-Bus path registration failed"); +		input_device_free(idev); +		goto fail; +	} + +	pr_reply = dbus_message_new_method_return(pr->msg); +	dbus_message_append_args(pr_reply, +			DBUS_TYPE_STRING, &path, +			DBUS_TYPE_INVALID); +	send_message_and_unref(pr->conn, pr_reply); + +	store_device_info(&pr->src, &pr->dst, &idev->hidp); +fail: +	pending_req_free(pr); +	dbus_message_unref(reply); +	dbus_pending_call_unref(call); +} + +static void hid_handle_reply(DBusPendingCall *call, void *data) +{ +	DBusMessage *reply = dbus_pending_call_steal_reply(call); +	struct pending_req *pr = data; +	uint32_t *phandle; +	DBusError derr; +	int len; + +	dbus_error_init(&derr); +	if (dbus_set_error_from_message(&derr, reply)) { +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (!dbus_message_get_args(reply, &derr, +				DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, &phandle, &len, +				DBUS_TYPE_INVALID)) { + +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (len != 0) { +		if (get_record(pr, *phandle, hid_record_reply) < 0) +			error("HID record search error"); +		else +			goto done; +	} +	err_failed(pr->conn, pr->msg, "SDP error"); +fail: +	pending_req_free(pr); +done: +	dbus_message_unref(reply); +	dbus_pending_call_unref(call); +} + +static void pnp_record_reply(DBusPendingCall *call, void *data) +{ +	DBusMessage *reply = dbus_pending_call_steal_reply(call); +	struct pending_req *pr = data; +	DBusError derr; +	uint8_t *rec_bin; +	int len; + +	dbus_error_init(&derr); +	if (dbus_set_error_from_message(&derr, reply)) { +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (!dbus_message_get_args(reply, &derr, +				DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &rec_bin, &len, +				DBUS_TYPE_INVALID)) { +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (len != 0) { +		int scanned; +		pr->pnp_rec = sdp_extract_pdu(rec_bin, &scanned); +		if (get_handles(pr, hid_uuid, hid_handle_reply) < 0) +			error("HID record search error"); +		else +			goto done; +	} + +	err_failed(pr->conn, pr->msg, "SDP error"); + +fail: +	pending_req_free(pr); + +done: +	dbus_message_unref(reply); +	dbus_pending_call_unref(call); +} + +static void pnp_handle_reply(DBusPendingCall *call, void *data) +{ +	DBusMessage *reply = dbus_pending_call_steal_reply(call); +	struct pending_req *pr = data; +	DBusError derr; +	uint32_t *phandle; +	int len; + +	dbus_error_init(&derr); +	if (dbus_set_error_from_message(&derr, reply)) { +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (!dbus_message_get_args(reply, &derr, +				DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, &phandle, &len, +				DBUS_TYPE_INVALID)) { + +		err_generic(pr->conn, pr->msg, derr.name, derr.message); +		dbus_error_free(&derr); +		goto fail; +	} + +	if (len == 0) { +		/* PnP is optional: Ignore it and request the HID handle  */ +		if (get_handles(pr, hid_uuid, hid_handle_reply) < 0) { +			err_failed(pr->conn, pr->msg, "SDP error"); +			goto fail; +		} +	} else { +		/* Request PnP record */ +		if (get_record(pr, *phandle, pnp_record_reply) < 0) { +			err_failed(pr->conn, pr->msg, "SDP error"); +			goto fail; +		} +	} + +	goto done; + +fail: +	pending_req_free(pr); + +done: +	dbus_message_unref(reply); +	dbus_pending_call_unref(call); +} + +static DBusHandlerResult manager_create_device(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_manager *mgr = data; +	struct input_device *idev; +	DBusMessage *reply; +	DBusError derr; +	char adapter[18], adapter_path[32]; +	const char *addr, *path; +	GSList *l; +	bdaddr_t dst; +	int dev_id; + +	dbus_error_init(&derr); +	if (!dbus_message_get_args(msg, &derr, +				DBUS_TYPE_STRING, &addr, +				DBUS_TYPE_INVALID)) { +		err_generic(conn, msg, derr.name, derr.message); +		dbus_error_free(&derr); +		return DBUS_HANDLER_RESULT_HANDLED; +	} + +	str2ba(addr, &dst); +	l = g_slist_find_custom(mgr->paths, &dst, +			(GCompareFunc) path_bdaddr_cmp); +	if (l) +		return err_already_exists(conn, msg, "Input Already exists"); + +	ba2str(&mgr->src, adapter); +	dev_id = hci_devid(adapter); +	snprintf(adapter_path, 32, "/org/bluez/hci%d", dev_id); + +	idev = input_device_new(&dst); +	if (!idev) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	if (get_stored_device_info(&mgr->src, &idev->dst, &idev->hidp) < 0) { +		struct pending_req *pr; + +		/* Data not found: create the input device later */ +		input_device_free(idev); +		pr = pending_req_new(conn, msg, adapter_path, &mgr->src, &dst); +		if (!pr) +			return DBUS_HANDLER_RESULT_NEED_MEMORY; + +		if (get_handles(pr, pnp_uuid, pnp_handle_reply) < 0) { +			pending_req_free(pr); +			return err_failed(conn, msg, "SDP error"); +		} + +		return DBUS_HANDLER_RESULT_HANDLED; +	} + +	path = create_input_path(idev->hidp.subclass); +	if (register_input_device(conn, idev, path) < 0) { +		input_device_free(idev); +		return err_failed(conn, msg, "D-Bus path registration failed"); +	} + +	reply = dbus_message_new_method_return(msg); +	if (!reply) { +		input_device_free(idev); +		return DBUS_HANDLER_RESULT_NEED_MEMORY; +	} + +	dbus_message_append_args(reply, +			DBUS_TYPE_STRING, &path, +			DBUS_TYPE_INVALID); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult manager_remove_device(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_manager *mgr = data; +	struct input_device *idev; +	DBusMessage *reply; +	DBusError derr; +	GSList *l; +	const char *path; + +	dbus_error_init(&derr); +	if (!dbus_message_get_args(msg, &derr, +				DBUS_TYPE_STRING, &path, +				DBUS_TYPE_INVALID)) { +		err_generic(conn, msg, derr.name, derr.message); +		dbus_error_free(&derr); +		return DBUS_HANDLER_RESULT_HANDLED; +	} + +	l = g_slist_find_custom(mgr->paths, path, (GCompareFunc) strcmp); +	if (!l) +		return err_does_not_exist(conn, msg, "Input doesn't exist"); + +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	/* Try disconnect */ +	if (dbus_connection_get_object_path_data(conn, path, (void *) &idev) && idev) +		disconnect(idev, (1 << HIDP_VIRTUAL_CABLE_UNPLUG)); + +	del_stored_device_info(&mgr->src, &idev->dst); + +	if (unregister_input_device(conn, path) < 0) { +		dbus_message_unref(reply); +		return err_failed(conn, msg, "D-Bus path unregistration failed"); +	} + +	free(l->data); +	mgr->paths = g_slist_remove(mgr->paths, l->data); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult manager_list_devices(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	struct input_manager *mgr = data; +	DBusMessageIter iter, iter_array; +	DBusMessage *reply; +	GSList *paths; + +	reply = dbus_message_new_method_return(msg); +	if (!reply) +		return DBUS_HANDLER_RESULT_NEED_MEMORY; + +	dbus_message_iter_init_append(reply, &iter); +	dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, +			DBUS_TYPE_STRING_AS_STRING, &iter_array); + +	for (paths = mgr->paths; paths != NULL; paths = paths->next) { +		const char *ppath = paths->data; +		dbus_message_iter_append_basic(&iter_array, +				DBUS_TYPE_STRING, &ppath); +	} + +	dbus_message_iter_close_container(&iter, &iter_array); + +	return send_message_and_unref(conn, reply); +} + +static DBusHandlerResult manager_message(DBusConnection *conn, +						DBusMessage *msg, void *data) +{ +	const char *path, *iface, *member; + +	path = dbus_message_get_path(msg); +	iface = dbus_message_get_interface(msg); +	member = dbus_message_get_member(msg); + +	/* Catching fallback paths */ +	if (strcmp(INPUT_PATH, path) != 0) +		return err_unknown_device(conn, msg); + +	/* Accept messages from the input manager interface only */ +	if (strcmp(INPUT_MANAGER_INTERFACE, iface)) +		return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + +	if (strcmp(member, "ListDevices") == 0) +		return manager_list_devices(conn, msg, data); + +	if (strcmp(member, "CreateDevice") == 0) +		return manager_create_device(conn, msg, data); + +	if (strcmp(member, "RemoveDevice") == 0) +		return manager_remove_device(conn, msg, data); + +	return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; +} + +static void manager_unregister(DBusConnection *conn, void *data) +{ +	struct input_manager *mgr = data; + +	info("Unregistered manager path"); + +	input_manager_free(mgr); +} + +/* Virtual table to handle manager object path hierarchy */ +static const DBusObjectPathVTable manager_table = { +	.message_function = manager_message, +	.unregister_function = manager_unregister, +}; + +static void stored_input(char *key, char *value, void *data) +{ +	DBusConnection *conn = data; +	struct input_device *idev; +	const char *path; +	bdaddr_t dst; + +	str2ba(key, &dst); +	idev = input_device_new(&dst); +	if (parse_stored_device_info(value, &idev->hidp) < 0) { +		input_device_free(idev); +		return; +	} + +	path = create_input_path(idev->hidp.subclass); +	if (register_input_device(conn, idev, path) < 0) +		input_device_free(idev); +} + +static int register_stored_inputs(DBusConnection *conn, bdaddr_t *src) +{ +	char filename[PATH_MAX + 1]; +	char addr[18]; + +	ba2str(src, addr); +	create_name(filename, PATH_MAX, STORAGEDIR, addr, "hidd"); +	textfile_foreach(filename, stored_input, conn); + +	return 0; +} + +int input_dbus_init(void) +{ +	struct input_manager *mgr; +	bdaddr_t src; +	int dev_id; + +	connection = init_dbus(NULL, NULL, NULL); +	if (!connection) +		return -1; + +	dbus_connection_set_exit_on_disconnect(connection, TRUE); + +	mgr = malloc(sizeof(struct input_manager)); +	memset(mgr, 0, sizeof(struct input_manager)); +	/* Fallback to catch invalid device path */ +	if (!dbus_connection_register_fallback(connection, INPUT_PATH, +						&manager_table, mgr)) { +		error("D-Bus failed to register %s path", INPUT_PATH); +		goto fail; +	} + +	info("Registered input manager path:%s", INPUT_PATH); + +	/* Set the default adapter */ +	bacpy(&src, BDADDR_ANY); +	dev_id = hci_get_route(&src); +	if (dev_id < 0) { +		error("Bluetooth device not available"); +		goto fail; +	} + +	if (hci_devba(dev_id, &src) < 0) { +		error("Can't get local adapter device info"); +		goto fail; +	} + +	bacpy(&mgr->src, &src); +	/* Register well known HID devices */ +	register_stored_inputs(connection, &src); + +	return 0; + +fail: +	input_manager_free(mgr); + +	return -1; +} + +void input_dbus_exit(void) +{ +	dbus_connection_unregister_object_path(connection, INPUT_PATH); + +	dbus_connection_unref(connection); +} + +void internal_service(const char *identifier) +{ +	DBusMessage *msg, *reply; +	const char *name = "Input Service Debug", *desc = ""; + +	info("Registering service"); + +	msg = dbus_message_new_method_call("org.bluez", "/org/bluez", +				"org.bluez.Database", "RegisterService"); +	if (!msg) { +		error("Can't create service register method"); +		return; +	} + +	dbus_message_append_args(msg, DBUS_TYPE_STRING, &identifier, +				DBUS_TYPE_STRING, &name, +				DBUS_TYPE_STRING, &desc, DBUS_TYPE_INVALID); + +	reply = dbus_connection_send_with_reply_and_block(connection, msg, -1, NULL); +	if (!reply) { +		error("Can't register service"); +		return; +	} + +	dbus_message_unref(msg); +	dbus_message_unref(reply); + +	dbus_connection_flush(connection); +} | 
