diff options
Diffstat (limited to 'input/server.c')
| -rw-r--r-- | input/server.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/input/server.c b/input/server.c new file mode 100644 index 00000000..9267e4aa --- /dev/null +++ b/input/server.c @@ -0,0 +1,153 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2004-2008 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 <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/socket.h> + +#include <bluetooth/bluetooth.h> +#include <bluetooth/l2cap.h> +#include <bluetooth/hidp.h> +#include <bluetooth/hci.h> +#include <bluetooth/hci_lib.h> +#include <bluetooth/sdp.h> + +#include <glib.h> +#include <dbus/dbus.h> +#include <gdbus.h> + +#include "logging.h" + +#include "device.h" +#include "server.h" +#include "storage.h" +#include "dbus-service.h" +#include "glib-helper.h" + +static const char *HID_UUID = "00001124-0000-1000-8000-00805f9b34fb"; + +struct authorization_data { + bdaddr_t src; + bdaddr_t dst; +}; + +static void auth_callback(DBusError *derr, void *user_data) +{ + struct authorization_data *auth = user_data; + + if (derr) { + error("Access denied: %s", derr->message); + if (dbus_error_has_name(derr, DBUS_ERROR_NO_REPLY)) + service_cancel_auth(&auth->src, &auth->dst); + + input_device_close_channels(&auth->src, &auth->dst); + } else + input_device_connadd(&auth->src, &auth->dst); + + g_free(auth); +} + +static int authorize_device(const bdaddr_t *src, const bdaddr_t *dst) +{ + struct authorization_data *auth; + + auth = g_new0(struct authorization_data, 1); + bacpy(&auth->src, src); + bacpy(&auth->dst, dst); + + return service_req_auth(src, dst, HID_UUID, + auth_callback, auth); +} + +static void connect_event_cb(GIOChannel *chan, int err, const bdaddr_t *src, + const bdaddr_t *dst, gpointer data) +{ + int sk, psm = GPOINTER_TO_UINT(data); + + if (err < 0) { + error("accept: %s (%d)", strerror(-err), -err); + return; + } + + sk = g_io_channel_unix_get_fd(chan); + + debug("Incoming connection on PSM %d", psm); + + if (input_device_set_channel(src, dst, psm, sk) < 0) { + /* Send unplug virtual cable to unknown devices */ + if (psm == L2CAP_PSM_HIDP_CTRL) { + unsigned char unplug[] = { 0x15 }; + int err; + err = write(sk, unplug, sizeof(unplug)); + } + close(sk); + return; + } + + if ((psm == L2CAP_PSM_HIDP_INTR) && (authorize_device(src, dst) < 0)) + input_device_close_channels(src, dst); + + return; +} + +static GIOChannel *ctrl_io = NULL; +static GIOChannel *intr_io = NULL; + +int server_start(void) +{ + ctrl_io = bt_l2cap_listen(BDADDR_ANY, L2CAP_PSM_HIDP_CTRL, 0, 0, + connect_event_cb, + GUINT_TO_POINTER(L2CAP_PSM_HIDP_CTRL)); + if (!ctrl_io) { + error("Failed to listen on control channel"); + return -1; + } + g_io_channel_set_close_on_unref(ctrl_io, TRUE); + + intr_io = bt_l2cap_listen(BDADDR_ANY, L2CAP_PSM_HIDP_INTR, 0, 0, + connect_event_cb, + GUINT_TO_POINTER(L2CAP_PSM_HIDP_INTR)); + if (!intr_io) { + error("Failed to listen on interrupt channel"); + g_io_channel_unref(ctrl_io); + ctrl_io = NULL; + } + g_io_channel_set_close_on_unref(intr_io, TRUE); + + return 0; +} + +void server_stop(void) +{ + if (intr_io) + g_io_channel_unref(intr_io); + + if (ctrl_io) + g_io_channel_unref(ctrl_io); +} |