/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2010 GSyC/LibreSoft, Universidad Rey Juan Carlos.
*
* 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
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <glib.h>
#include "lib/bluetooth.h"
#include "lib/l2cap.h"
#include "lib/sdp.h"
#include "gdbus/gdbus.h"
#include "src/dbus-common.h"
#include "src/log.h"
#include "src/error.h"
#include "src/adapter.h"
#include "src/device.h"
#include "src/sdpd.h"
#include "btio/btio.h"
#include "hdp_types.h"
#include "hdp_util.h"
#include "hdp.h"
#include "mcap.h"
#define ECHO_TIMEOUT 1 /* second */
#define HDP_ECHO_LEN 15
static GSList *applications = NULL;
static GSList *devices = NULL;
static uint8_t next_app_id = HDP_MDEP_INITIAL;
static GSList *adapters;
static struct hdp_device *create_health_device(struct btd_device *device);
static void free_echo_data(struct hdp_echo_data *edata);
struct hdp_create_dc {
DBusMessage *msg;
struct hdp_application *app;
struct hdp_device *dev;
uint8_t config;
uint8_t mdep;
guint ref;
mcap_mdl_operation_cb cb;
};
struct hdp_tmp_dc_data {
DBusMessage *msg;
struct hdp_channel *hdp_chann;
guint ref;
mcap_mdl_operation_cb cb;
};
struct hdp_echo_data {
gboolean echo_done; /* Is a echo was already done */
gpointer buf; /* echo packet sent */
guint tid; /* echo timeout */
};
static struct hdp_channel *hdp_channel_ref(struct hdp_channel *chan)
{
if (chan == NULL)
return NULL;
chan->ref++;
DBG("(%p): ref=%d", chan, chan->ref);
return chan;
}
static void free_health_channel(struct hdp_channel *chan)
{
if (chan->mdep == HDP_MDEP_ECHO) {
free_echo_data(chan->edata);
chan->edata = NULL;
}
mcap_mdl_unref(chan->mdl);
hdp_application_unref(chan->app);
health_device_unref(chan->dev);
g_free(chan->path);
g_free(chan);
}
static void hdp_channel_unref(struct hdp_channel *chan)
{
if (chan == NULL)
return;
chan->ref --;
DBG("(%p): ref=%d", chan, chan->ref);
if (chan->ref > 0)
return;
free_health_channel(chan);
}
static void free_hdp_create_dc(struct hdp_create_dc *dc_data)
{
dbus_message_unref(dc_data->msg);
hdp_application_unref(dc_data->app);
health_device_unref(dc_data->dev);
g_free(dc_data);
}
static struct hdp_create_dc *hdp_create_data_ref(struct hdp_create_dc *dc_data)
{
dc_data->ref++;
DBG("(%p): ref=%d", dc_data, dc_data->ref);
return dc_data;
}
static void hdp_create_data_unref(struct hdp_create_dc *dc_data)
{
dc_data->ref--;
DBG("(%p): ref=%d", dc_data, dc_data->ref);
if (dc_data->ref > 0)
return;
free_hdp_create_dc(dc_data);
}
static void free_hdp_conn_dc(struct hdp_tmp_dc_data *data)
{
dbus_message_unref(data->msg);
hdp_channel_unref(data->hdp_chann);
g_free(data);
}
static struct hdp_tmp_dc_data *hdp_tmp_dc_data_ref(struct hdp_tmp_dc_data *data)
{
data->ref++;
DBG("hdp_conn_data_ref(%p): ref=%d", data, data->ref);
return data;
}
static void hdp_tmp_dc_data_unref(struct hdp_tmp_dc_data *data)
{
data->ref--;
DBG("hdp_conn_data_unref(%p): ref=%d", data, data->ref);
if (data->ref > 0)
return;
free_hdp_conn_dc(data);
}
static int cmp_app_id(gconstpointer a, gconstpointer b)
{
const struct hdp_application *app = a;
const uint8_t *id = b;
return app->id - *id;
}
static int cmp_adapter(gconstpointer a, gconstpointer b)
{
const struct hdp_adapter *hdp_adapter = a;
const struct btd_adapter *adapter = b;
if (hdp_adapter->btd_adapter == adapter)
return 0;
return -1;
}
static int cmp_device(gconstpointer a, gconstpointer b)
{
const struct hdp_device *hdp_device = a;
const struct btd_device *device = b;
if (hdp_device->dev == device)
return 0;
return -1;
}
static int cmp_dev_addr(gconstpointer a, gconstpointer dst)
{
const struct hdp_device *device = a;
return bacmp(device_get_address(device->dev), dst);
}
static int cmp_dev_mcl(gconstpointer a, gconstpointer mcl)
{
const struct hdp_device *device = a;
if (mcl == device->mcl)
return 0;
return -1;
}
static int cmp_chan_mdlid(gconstpointer a, gconstpointer b)
{
const struct hdp_channel *chan = a;
const uint16_t *mdlid = b;
return chan->mdlid - *mdlid;
}
static int cmp_chan_path(gconstpointer a, gconstpointer b)
{
const struct hdp_channel *chan = a;
const char *path = b;
return g_ascii_strcasecmp(chan->path, path);
}
static int cmp_chan_mdl(gconstpointer a, gconstpointer mdl)
{
const struct hdp_channel *chan = a;
if (chan->mdl == mdl)
return 0;
return -1;
}
static uint8_t get_app_id(void)
{
uint8_t id = next_app_id;
do {
GSList *l = g_slist_find_custom(applications, &id, cmp_app_id);
if (l == NULL) {
next_app_id = (id % HDP_MDEP_FINAL) + 1;
return id;
} else
id = (id % HDP_MDEP_FINAL) + 1;
} while (id != next_app_id);
/* No more ids available */
return 0;
}
static int cmp_app(gconstpointer a, gconstpointer b)
{
const struct hdp_application *app = a;
return g_strcmp0(app->path, b);
}
static gboolean set_app_path(struct hdp_application *app)
{
app->id = get_app_id();
if (app->id == 0)
return FALSE;
app->path = g_strdup_printf(MANAGER_PATH "/health_app_%d", app->id);
return TRUE;
};
static void device_unref_mcl(struct hdp_device *hdp_device)
{
if (hdp_device->mcl == NULL)
return;
mcap_close_mcl(hdp_device->mcl, FALSE);
mcap_mcl_unref(hdp_device->mcl);
hdp_device->mcl = NULL;
hdp_device->mcl_conn = FALSE;
}
static void free_health_device(struct hdp_device *device)
{
if (device->dev != NULL) {
btd_device_unref(device->dev);
device->dev = NULL;
}
device_unref_mcl(device);
g_free(device);
}
static void update_adapter_cb(void *data, void *user_data);
static void remove_application(struct hdp_application *app)
{
DBG("Application %s deleted", app->path);
hdp_application_unref(app);
g_slist_foreach(adapters, update_adapter_cb, NULL);
}
static void client_disconnected(DBusConnection *conn, void *user_data)
{
struct hdp_application *app = user_data;
DBG("Client disconnected from the bus, deleting hdp application");
applications = g_slist_remove(applications, app);
app->dbus_watcher = 0; /* Watcher shouldn't be freed in this case */
remove_application(app);
}
static DBusMessage *manager_create_application(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct hdp_application *app;
const char *name;
DBusMessageIter iter;
GError *err = NULL;
dbus_message_iter_init(msg, &iter);
app = hdp_get_app_config(&iter, &err);
if (err != NULL) {
g_error_free(err);
return btd_error_invalid_args(msg);
}
name = dbus_message_get_sender(msg);
if (name == NULL) {
hdp_application_unref(app);
return g_dbus_create_error(msg,
ERROR_INTERFACE ".HealthError",
"Can't get sender name");
}
if (!set_app_path(app)) {
hdp_application_unref(app);
return g_dbus_create_error(msg,
ERROR_INTERFACE ".HealthError",
"Can't get a valid id for the application");
}
app->oname = g_strdup(name);
applications = g_slist_prepend(applications, app);
app->dbus_watcher =
g_dbus_add_disconnect_watch(btd_get_dbus_connection(),
name, client_disconnected, app, NULL);
g_slist_foreach(adapters, update_adapter_cb, NULL);
DBG("Health application created with id %s", app->path);
return g_dbus_create_reply(msg, DBUS_TYPE_OBJECT_PATH, &app->path,
DBUS_TYPE_INVALID);
}
static DBusMessage *manager_destroy_application(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
const char *path;
struct hdp_application *app;
GSList *l;
if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID))
return btd_error_invalid_args(msg);
l = g_slist_find_custom(applications, path, cmp_app);
if (l == NULL)
return g_dbus_create_error(msg,
ERROR_INTERFACE ".InvalidArguments",
"Invalid arguments in method call, "
"no such application");
app = l->data;
applications = g_slist_remove(applications, app);
remove_application(app);
return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
}
static void application_unref(void *data, void *user_data)
{
hdp_application_unref(data);
}
static void manager_path_unregister(gpointer data)
{
g_slist_foreach(applications, application_unref, NULL);
g_slist_free(applications);
applications = NULL;
g_slist_foreach(adapters, update_adapter_cb, NULL);
}
static const GDBusMethodTable health_manager_methods[] = {
{ GDBUS_METHOD("CreateApplication",
GDBUS_ARGS({ "config", "a{sv}" }),
GDBUS_ARGS({ "application", "o" }),
manager_create_application) },
{ GDBUS_METHOD("DestroyApplication",
GDBUS_ARGS({ "application", "o" }), NULL,
manager_destroy_application) },
{ }
};
static gboolean channel_property_get_device(const GDBusPropertyTable *property,
DBusMessageIter *iter, void *data)
{
struct hdp_channel *chan = data;
const char *path = device_get_path(chan->dev->dev);
dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH, &path);
return TRUE;
}
static gboolean channel_property_get_application(
const GDBusPropertyTable *property,
DBusMessageIter *iter, void *data)
{
struct hdp_channel *chan = data;
const char *path = chan->app->path;
dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH, &path);
return TRUE;
}
static gboolean channel_property_get_type(const GDBusPropertyTable *property,
DBusMessageIter *iter, void *data)
{
struct hdp_channel *chan = data;
const char *type;
if (chan->config == HDP_RELIABLE_DC)
type = "reliable";
else
type = "streaming";
dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &type);
return TRUE;
}
static void hdp_tmp_dc_data_destroy(gpointer data)
{
struct hdp_tmp_dc_data *hdp_conn = data;
hdp_tmp_dc_data_unref(hdp_conn);
}
static void abort_mdl_cb(GError *err, gpointer data)
{
if (err != NULL)
error("Aborting error: %s", err->message);
}
static void hdp_mdl_reconn_cb(struct mcap_mdl *mdl, GError *err, gpointer data)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_tmp_dc_data *dc_data = data;
DBusMessage *reply;
int fd;
if (err != NULL) {
struct hdp_channel *chan = dc_data->hdp_chann;
GError *gerr = NULL;
error("%s", err->message);
reply = g_dbus_create_error(dc_data->msg,
ERROR_INTERFACE ".HealthError",
"Cannot reconnect: %s", err->message);
g_dbus_send_message(conn, reply);
/* Send abort request because remote side */
/* is now in PENDING state */
if (!mcap_mdl_abort(chan->mdl, abort_mdl_cb, NULL, NULL,
&gerr)) {
error("%s", gerr->message);
g_error_free(gerr);
}
return;
}
fd = mcap_mdl_get_fd(dc_data->hdp_chann->mdl);
if (fd < 0) {
reply = g_dbus_create_error(dc_data->msg,
ERROR_INTERFACE ".HealthError",
"Cannot get file descriptor");
g_dbus_send_message(conn, reply);
return;
}
reply = g_dbus_create_reply(dc_data->msg, DBUS_TYPE_UNIX_FD,
&fd, DBUS_TYPE_INVALID);
g_dbus_send_message(conn, reply);
g_dbus_emit_signal(conn, device_get_path(dc_data->hdp_chann->dev->dev),
HEALTH_DEVICE, "ChannelConnected",
DBUS_TYPE_OBJECT_PATH, &dc_data->hdp_chann->path,
DBUS_TYPE_INVALID);
}
static void hdp_get_dcpsm_cb(uint16_t dcpsm, gpointer user_data, GError *err)
{
struct hdp_tmp_dc_data *hdp_conn = user_data;
struct hdp_channel *hdp_chann = hdp_conn->hdp_chann;
GError *gerr = NULL;
uint8_t mode;
if (err != NULL) {
hdp_conn->cb(hdp_chann->mdl, err, hdp_conn);
return;
}
if (hdp_chann->config == HDP_RELIABLE_DC)
mode = L2CAP_MODE_ERTM;
else
mode = L2CAP_MODE_STREAMING;
if (mcap_connect_mdl(hdp_chann->mdl, mode, dcpsm, hdp_conn->cb,
hdp_tmp_dc_data_ref(hdp_conn),
hdp_tmp_dc_data_destroy, &gerr))
return;
hdp_conn->cb(hdp_chann->mdl, err, hdp_conn);
g_error_free(gerr);
hdp_tmp_dc_data_unref(hdp_conn);
}
static void device_reconnect_mdl_cb(struct mcap_mdl *mdl, GError *err,
gpointer data)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_tmp_dc_data *dc_data = data;
GError *gerr = NULL;
DBusMessage *reply;
if (err != NULL) {
reply = g_dbus_create_error(dc_data->msg,
ERROR_INTERFACE ".HealthError",
"Cannot reconnect: %s", err->message);
g_dbus_send_message(conn, reply);
return;
}
dc_data->cb = hdp_mdl_reconn_cb;
if (hdp_get_dcpsm(dc_data->hdp_chann->dev, hdp_get_dcpsm_cb,
hdp_tmp_dc_data_ref(dc_data),
hdp_tmp_dc_data_destroy, &gerr))
return;
error("%s", gerr->message);
reply = g_dbus_create_error(dc_data->msg,
ERROR_INTERFACE ".HealthError",
"Cannot reconnect: %s", gerr->message);
g_dbus_send_message(conn, reply);
hdp_tmp_dc_data_unref(dc_data);
g_error_free(gerr);
/* Send abort request because remote side is now in PENDING state */
if (!mcap_mdl_abort(mdl, abort_mdl_cb, NULL, NULL, &gerr)) {
error("%s", gerr->message);
g_error_free(gerr);
}
}
static DBusMessage *channel_acquire_continue(struct hdp_tmp_dc_data *data,
GError *err)
{
DBusMessage *reply;
GError *gerr = NULL;
int fd;
if (err != NULL) {
return g_dbus_create_error(data->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
}
fd = mcap_mdl_get_fd(data->hdp_chann->mdl);
if (fd >= 0)
return g_dbus_create_reply(data->msg, DBUS_TYPE_UNIX_FD, &fd,
DBUS_TYPE_INVALID);
hdp_tmp_dc_data_ref(data);
if (mcap_reconnect_mdl(data->hdp_chann->mdl, device_reconnect_mdl_cb,
data, hdp_tmp_dc_data_destroy, &gerr))
return NULL;
reply = g_dbus_create_error(data->msg, ERROR_INTERFACE ".HealthError",
"Cannot reconnect: %s", gerr->message);
g_error_free(gerr);
hdp_tmp_dc_data_unref(data);
return reply;
}
static void channel_acquire_cb(gpointer data, GError *err)
{
DBusMessage *reply;
reply = channel_acquire_continue(data, err);
if (reply != NULL)
g_dbus_send_message(btd_get_dbus_connection(), reply);
}
static DBusMessage *channel_acquire(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct hdp_channel *chan = user_data;
struct hdp_tmp_dc_data *dc_data;
GError *gerr = NULL;
DBusMessage *reply;
dc_data = g_new0(struct hdp_tmp_dc_data, 1);
dc_data->msg = dbus_message_ref(msg);
dc_data->hdp_chann = hdp_channel_ref(chan);
if (chan->dev->mcl_conn) {
reply = channel_acquire_continue(hdp_tmp_dc_data_ref(dc_data),
NULL);
hdp_tmp_dc_data_unref(dc_data);
return reply;
}
if (hdp_establish_mcl(chan->dev, channel_acquire_cb,
hdp_tmp_dc_data_ref(dc_data),
hdp_tmp_dc_data_destroy, &gerr))
return NULL;
reply = g_dbus_create_error(msg, ERROR_INTERFACE ".HealthError",
"%s", gerr->message);
hdp_tmp_dc_data_unref(dc_data);
g_error_free(gerr);
return reply;
}
static void close_mdl(struct hdp_channel *hdp_chann)
{
int fd;
fd = mcap_mdl_get_fd(hdp_chann->mdl);
if (fd < 0)
return;
close(fd);
}
static DBusMessage *channel_release(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct hdp_channel *hdp_chann = user_data;
close_mdl(hdp_chann);
return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
}
static void free_echo_data(struct hdp_echo_data *edata)
{
if (edata == NULL)
return;
if (edata->tid > 0)
g_source_remove(edata->tid);
if (edata->buf != NULL)
g_free(edata->buf);
g_free(edata);
}
static void health_channel_destroy(void *data)
{
struct hdp_channel *hdp_chan = data;
struct hdp_device *dev = hdp_chan->dev;
DBG("Destroy Health Channel %s", hdp_chan->path);
if (g_slist_find(dev->channels, hdp_chan) == NULL)
goto end;
dev->channels = g_slist_remove(dev->channels, hdp_chan);
if (hdp_chan->mdep != HDP_MDEP_ECHO)
g_dbus_emit_signal(btd_get_dbus_connection(),
device_get_path(dev->dev),
HEALTH_DEVICE, "ChannelDeleted",
DBUS_TYPE_OBJECT_PATH, &hdp_chan->path,
DBUS_TYPE_INVALID);
if (hdp_chan == dev->fr) {
hdp_channel_unref(dev->fr);
dev->fr = NULL;
}
end:
hdp_channel_unref(hdp_chan);
}
static const GDBusMethodTable health_channels_methods[] = {
{ GDBUS_ASYNC_METHOD("Acquire",
NULL, GDBUS_ARGS({ "fd", "h" }),
channel_acquire) },
{ GDBUS_METHOD("Release", NULL, NULL, channel_release) },
{ }
};
static const GDBusPropertyTable health_channels_properties[] = {
{ "Device", "o", channel_property_get_device },
{ "Application", "o", channel_property_get_application },
{ "Type", "s", channel_property_get_type },
{ }
};
static struct hdp_channel *create_channel(struct hdp_device *dev,
uint8_t config,
struct mcap_mdl *mdl,
uint16_t mdlid,
struct hdp_application *app,
GError **err)
{
struct hdp_channel *hdp_chann;
if (dev == NULL) {
g_set_error(err, HDP_ERROR, HDP_UNSPECIFIED_ERROR,
"HDP device uninitialized");
return NULL;
}
hdp_chann = g_new0(struct hdp_channel, 1);
hdp_chann->config = config;
hdp_chann->dev = health_device_ref(dev);
hdp_chann->mdlid = mdlid;
if (mdl != NULL)
hdp_chann->mdl = mcap_mdl_ref(mdl);
if (app != NULL) {
hdp_chann->mdep = app->id;
hdp_chann->app = hdp_application_ref(app);
} else
hdp_chann->edata = g_new0(struct hdp_echo_data, 1);
hdp_chann->path = g_strdup_printf("%s/chan%d",
device_get_path(hdp_chann->dev->dev),
hdp_chann->mdlid);
dev->channels = g_slist_append(dev->channels,
hdp_channel_ref(hdp_chann));
if (hdp_chann->mdep == HDP_MDEP_ECHO)
return hdp_channel_ref(hdp_chann);
if (!g_dbus_register_interface(btd_get_dbus_connection(),
hdp_chann->path, HEALTH_CHANNEL,
health_channels_methods, NULL,
health_channels_properties, hdp_chann,
health_channel_destroy)) {
g_set_error(err, HDP_ERROR, HDP_UNSPECIFIED_ERROR,
"Can't register the channel interface");
health_channel_destroy(hdp_chann);
return NULL;
}
return hdp_channel_ref(hdp_chann);
}
static void remove_channels(struct hdp_device *dev)
{
struct hdp_channel *chan;
char *path;
while (dev->channels != NULL) {
chan = dev->channels->data;
path = g_strdup(chan->path);
if (!g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_CHANNEL))
health_channel_destroy(chan);
g_free(path);
}
}
static void close_device_con(struct hdp_device *dev, gboolean cache)
{
if (dev->mcl == NULL)
return;
mcap_close_mcl(dev->mcl, cache);
dev->mcl_conn = FALSE;
if (cache)
return;
device_unref_mcl(dev);
remove_channels(dev);
if (!dev->sdp_present) {
const char *path;
path = device_get_path(dev->dev);
g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_DEVICE);
}
}
static int send_echo_data(int sock, const void *buf, uint32_t size)
{
const uint8_t *buf_b = buf;
uint32_t sent = 0;
while (sent < size) {
int n = write(sock, buf_b + sent, size - sent);
if (n < 0)
return -1;
sent += n;
}
return 0;
}
static gboolean serve_echo(GIOChannel *io_chan, GIOCondition cond,
gpointer data)
{
struct hdp_channel *chan = data;
uint8_t buf[MCAP_DC_MTU];
int fd, len;
if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) {
hdp_channel_unref(chan);
return FALSE;
}
if (chan->edata->echo_done)
goto fail;
chan->edata->echo_done = TRUE;
fd = g_io_channel_unix_get_fd(io_chan);
len = read(fd, buf, sizeof(buf));
if (len < 0)
goto fail;
if (send_echo_data(fd, buf, len) >= 0)
return TRUE;
fail:
close_device_con(chan->dev, FALSE);
hdp_channel_unref(chan);
return FALSE;
}
static gboolean check_channel_conf(struct hdp_channel *chan)
{
GError *err = NULL;
GIOChannel *io;
uint8_t mode;
uint16_t imtu, omtu;
int fd;
fd = mcap_mdl_get_fd(chan->mdl);
if (fd < 0)
return FALSE;
io = g_io_channel_unix_new(fd);
if (!bt_io_get(io, &err,
BT_IO_OPT_MODE, &mode,
BT_IO_OPT_IMTU, &imtu,
BT_IO_OPT_OMTU, &omtu,
BT_IO_OPT_INVALID)) {
error("Error: %s", err->message);
g_io_channel_unref(io);
g_error_free(err);
return FALSE;
}
g_io_channel_unref(io);
switch (chan->config) {
case HDP_RELIABLE_DC:
if (mode != L2CAP_MODE_ERTM)
return FALSE;
break;
case HDP_STREAMING_DC:
if (mode != L2CAP_MODE_STREAMING)
return FALSE;
break;
default:
error("Error: Connected with unknown configuration");
return FALSE;
}
DBG("MDL imtu %d omtu %d Channel imtu %d omtu %d", imtu, omtu,
chan->imtu, chan->omtu);
if (chan->imtu == 0)
chan->imtu = imtu;
if (chan->omtu == 0)
chan->omtu = omtu;
if (chan->imtu != imtu || chan->omtu != omtu)
return FALSE;
return TRUE;
}
static void hdp_mcap_mdl_connected_cb(struct mcap_mdl *mdl, void *data)
{
struct hdp_device *dev = data;
struct hdp_channel *chan;
DBG("");
if (dev->ndc == NULL)
return;
chan = dev->ndc;
if (chan->mdl == NULL)
chan->mdl = mcap_mdl_ref(mdl);
if (g_slist_find(dev->channels, chan) == NULL)
dev->channels = g_slist_prepend(dev->channels,
hdp_channel_ref(chan));
if (!check_channel_conf(chan)) {
close_mdl(chan);
goto end;
}
if (chan->mdep == HDP_MDEP_ECHO) {
GIOChannel *io;
int fd;
fd = mcap_mdl_get_fd(chan->mdl);
if (fd < 0)
goto end;
chan->edata->echo_done = FALSE;
io = g_io_channel_unix_new(fd);
g_io_add_watch(io, G_IO_ERR | G_IO_HUP | G_IO_NVAL | G_IO_IN,
serve_echo, hdp_channel_ref(chan));
g_io_channel_unref(io);
goto end;
}
g_dbus_emit_signal(btd_get_dbus_connection(), device_get_path(dev->dev),
HEALTH_DEVICE, "ChannelConnected",
DBUS_TYPE_OBJECT_PATH, &chan->path,
DBUS_TYPE_INVALID);
if (dev->fr != NULL)
goto end;
dev->fr = hdp_channel_ref(chan);
g_dbus_emit_property_changed(btd_get_dbus_connection(),
device_get_path(dev->dev), HEALTH_DEVICE,
"MainChannel");
end:
hdp_channel_unref(dev->ndc);
dev->ndc = NULL;
}
static void hdp_mcap_mdl_closed_cb(struct mcap_mdl *mdl, void *data)
{
/* struct hdp_device *dev = data; */
DBG("");
/* Nothing to do */
}
static void hdp_mcap_mdl_deleted_cb(struct mcap_mdl *mdl, void *data)
{
struct hdp_device *dev = data;
struct hdp_channel *chan;
char *path;
GSList *l;
DBG("");
l = g_slist_find_custom(dev->channels, mdl, cmp_chan_mdl);
if (l == NULL)
return;
chan = l->data;
path = g_strdup(chan->path);
if (!g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_CHANNEL))
health_channel_destroy(chan);
g_free(path);
}
static void hdp_mcap_mdl_aborted_cb(struct mcap_mdl *mdl, void *data)
{
struct hdp_device *dev = data;
DBG("");
if (dev->ndc == NULL)
return;
dev->ndc->mdl = mcap_mdl_ref(mdl);
if (g_slist_find(dev->channels, dev->ndc) == NULL)
dev->channels = g_slist_prepend(dev->channels,
hdp_channel_ref(dev->ndc));
if (dev->ndc->mdep != HDP_MDEP_ECHO)
g_dbus_emit_signal(btd_get_dbus_connection(),
device_get_path(dev->dev),
HEALTH_DEVICE, "ChannelConnected",
DBUS_TYPE_OBJECT_PATH, &dev->ndc->path,
DBUS_TYPE_INVALID);
hdp_channel_unref(dev->ndc);
dev->ndc = NULL;
}
static uint8_t hdp2l2cap_mode(uint8_t hdp_mode)
{
return hdp_mode == HDP_STREAMING_DC ? L2CAP_MODE_STREAMING :
L2CAP_MODE_ERTM;
}
static uint8_t hdp_mcap_mdl_conn_req_cb(struct mcap_mcl *mcl, uint8_t mdepid,
uint16_t mdlid, uint8_t *conf, void *data)
{
struct hdp_device *dev = data;
struct hdp_application *app;
GError *err = NULL;
GSList *l;
DBG("Data channel request");
if (mdepid == HDP_MDEP_ECHO) {
switch (*conf) {
case HDP_NO_PREFERENCE_DC:
*conf = HDP_RELIABLE_DC;
break;
case HDP_RELIABLE_DC:
break;
case HDP_STREAMING_DC:
return MCAP_CONFIGURATION_REJECTED;
default:
/* Special case defined in HDP spec 3.4. When an invalid
* configuration is received we shall close the MCL when
* we are still processing the callback. */
close_device_con(dev, FALSE);
return MCAP_CONFIGURATION_REJECTED; /* not processed */
}
if (!mcap_set_data_chan_mode(dev->hdp_adapter->mi,
L2CAP_MODE_ERTM, &err)) {
error("Error: %s", err->message);
g_error_free(err);
return MCAP_MDL_BUSY;
}
dev->ndc = create_channel(dev, *conf, NULL, mdlid, NULL, NULL);
if (dev->ndc == NULL)
return MCAP_MDL_BUSY;
return MCAP_SUCCESS;
}
l = g_slist_find_custom(applications, &mdepid, cmp_app_id);
if (l == NULL)
return MCAP_INVALID_MDEP;
app = l->data;
/* Check if is the first dc if so,
* only reliable configuration is allowed */
switch (*conf) {
case HDP_NO_PREFERENCE_DC:
if (app->role == HDP_SINK)
return MCAP_CONFIGURATION_REJECTED;
else if (dev->fr && app->chan_type_set)
*conf = app->chan_type;
else
*conf = HDP_RELIABLE_DC;
break;
case HDP_STREAMING_DC:
if (!dev->fr || app->role == HDP_SOURCE)
return MCAP_CONFIGURATION_REJECTED;
break;
case HDP_RELIABLE_DC:
if (app->role == HDP_SOURCE)
return MCAP_CONFIGURATION_REJECTED;
break;
default:
/* Special case defined in HDP spec 3.4. When an invalid
* configuration is received we shall close the MCL when
* we are still processing the callback. */
close_device_con(dev, FALSE);
return MCAP_CONFIGURATION_REJECTED; /* not processed */
}
l = g_slist_find_custom(dev->channels, &mdlid, cmp_chan_mdlid);
if (l != NULL) {
struct hdp_channel *chan = l->data;
char *path;
path = g_strdup(chan->path);
g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_CHANNEL);
g_free(path);
}
if (!mcap_set_data_chan_mode(dev->hdp_adapter->mi,
hdp2l2cap_mode(*conf), &err)) {
error("Error: %s", err->message);
g_error_free(err);
return MCAP_MDL_BUSY;
}
dev->ndc = create_channel(dev, *conf, NULL, mdlid, app, NULL);
if (dev->ndc == NULL)
return MCAP_MDL_BUSY;
return MCAP_SUCCESS;
}
static uint8_t hdp_mcap_mdl_reconn_req_cb(struct mcap_mdl *mdl, void *data)
{
struct hdp_device *dev = data;
struct hdp_channel *chan;
GError *err = NULL;
GSList *l;
l = g_slist_find_custom(dev->channels, mdl, cmp_chan_mdl);
if (l == NULL)
return MCAP_INVALID_MDL;
chan = l->data;
if (dev->fr == NULL && chan->config != HDP_RELIABLE_DC &&
chan->mdep != HDP_MDEP_ECHO)
return MCAP_UNSPECIFIED_ERROR;
if (!mcap_set_data_chan_mode(dev->hdp_adapter->mi,
hdp2l2cap_mode(chan->config), &err)) {
error("Error: %s", err->message);
g_error_free(err);
return MCAP_MDL_BUSY;
}
dev->ndc = hdp_channel_ref(chan);
return MCAP_SUCCESS;
}
gboolean hdp_set_mcl_cb(struct hdp_device *device, GError **err)
{
gboolean ret;
if (device->mcl == NULL)
return FALSE;
ret = mcap_mcl_set_cb(device->mcl, device, err,
MCAP_MDL_CB_CONNECTED, hdp_mcap_mdl_connected_cb,
MCAP_MDL_CB_CLOSED, hdp_mcap_mdl_closed_cb,
MCAP_MDL_CB_DELETED, hdp_mcap_mdl_deleted_cb,
MCAP_MDL_CB_ABORTED, hdp_mcap_mdl_aborted_cb,
MCAP_MDL_CB_REMOTE_CONN_REQ, hdp_mcap_mdl_conn_req_cb,
MCAP_MDL_CB_REMOTE_RECONN_REQ, hdp_mcap_mdl_reconn_req_cb,
MCAP_MDL_CB_INVALID);
if (ret)
return TRUE;
error("Can't set mcl callbacks, closing mcl");
close_device_con(device, TRUE);
return FALSE;
}
static void mcl_connected(struct mcap_mcl *mcl, gpointer data)
{
struct hdp_device *hdp_device;
bdaddr_t addr;
GSList *l;
mcap_mcl_get_addr(mcl, &addr);
l = g_slist_find_custom(devices, &addr, cmp_dev_addr);
if (l == NULL) {
struct hdp_adapter *hdp_adapter = data;
struct btd_device *device;
device = btd_adapter_get_device(hdp_adapter->btd_adapter,
&addr, BDADDR_BREDR);
if (!device)
return;
hdp_device = create_health_device(device);
if (!hdp_device)
return;
devices = g_slist_append(devices, hdp_device);
} else
hdp_device = l->data;
hdp_device->mcl = mcap_mcl_ref(mcl);
hdp_device->mcl_conn = TRUE;
DBG("New mcl connected from %s", device_get_path(hdp_device->dev));
hdp_set_mcl_cb(hdp_device, NULL);
}
static void mcl_reconnected(struct mcap_mcl *mcl, gpointer data)
{
struct hdp_device *hdp_device;
GSList *l;
l = g_slist_find_custom(devices, mcl, cmp_dev_mcl);
if (l == NULL)
return;
hdp_device = l->data;
hdp_device->mcl_conn = TRUE;
DBG("MCL reconnected %s", device_get_path(hdp_device->dev));
hdp_set_mcl_cb(hdp_device, NULL);
}
static void mcl_disconnected(struct mcap_mcl *mcl, gpointer data)
{
struct hdp_device *hdp_device;
GSList *l;
l = g_slist_find_custom(devices, mcl, cmp_dev_mcl);
if (l == NULL)
return;
hdp_device = l->data;
hdp_device->mcl_conn = FALSE;
DBG("Mcl disconnected %s", device_get_path(hdp_device->dev));
}
static void mcl_uncached(struct mcap_mcl *mcl, gpointer data)
{
struct hdp_device *hdp_device;
const char *path;
GSList *l;
l = g_slist_find_custom(devices, mcl, cmp_dev_mcl);
if (l == NULL)
return;
hdp_device = l->data;
device_unref_mcl(hdp_device);
if (hdp_device->sdp_present)
return;
/* Because remote device hasn't announced an HDP record */
/* the Bluetooth daemon won't notify when the device shall */
/* be removed. Then we have to remove the HealthDevice */
/* interface manually */
path = device_get_path(hdp_device->dev);
g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_DEVICE);
DBG("Mcl uncached %s", path);
}
static void check_devices_mcl(void)
{
struct hdp_device *dev;
GSList *l, *to_delete = NULL;
for (l = devices; l; l = l->next) {
dev = l->data;
device_unref_mcl(dev);
if (!dev->sdp_present)
to_delete = g_slist_append(to_delete, dev);
else
remove_channels(dev);
}
for (l = to_delete; l; l = l->next) {
const char *path;
path = device_get_path(dev->dev);
g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_DEVICE);
}
g_slist_free(to_delete);
}
static void release_adapter_instance(struct hdp_adapter *hdp_adapter)
{
if (hdp_adapter->mi == NULL)
return;
check_devices_mcl();
mcap_release_instance(hdp_adapter->mi);
mcap_instance_unref(hdp_adapter->mi);
hdp_adapter->mi = NULL;
}
static gboolean update_adapter(struct hdp_adapter *hdp_adapter)
{
GError *err = NULL;
const bdaddr_t *src;
if (applications == NULL) {
release_adapter_instance(hdp_adapter);
goto update;
}
if (hdp_adapter->mi != NULL)
goto update;
src = btd_adapter_get_address(hdp_adapter->btd_adapter);
hdp_adapter->mi = mcap_create_instance(src,
BT_IO_SEC_MEDIUM, 0, 0,
mcl_connected, mcl_reconnected,
mcl_disconnected, mcl_uncached,
NULL, /* CSP is not used by now */
hdp_adapter, &err);
if (hdp_adapter->mi == NULL) {
error("Error creating the MCAP instance: %s", err->message);
g_error_free(err);
return FALSE;
}
hdp_adapter->ccpsm = mcap_get_ctrl_psm(hdp_adapter->mi, &err);
if (err != NULL) {
error("Error getting MCAP control PSM: %s", err->message);
goto fail;
}
hdp_adapter->dcpsm = mcap_get_data_psm(hdp_adapter->mi, &err);
if (err != NULL) {
error("Error getting MCAP data PSM: %s", err->message);
goto fail;
}
update:
if (hdp_update_sdp_record(hdp_adapter, applications))
return TRUE;
error("Error updating the SDP record");
fail:
release_adapter_instance(hdp_adapter);
if (err != NULL)
g_error_free(err);
return FALSE;
}
static void update_adapter_cb(void *data, void *user_data)
{
update_adapter(data);
}
int hdp_adapter_register(struct btd_adapter *adapter)
{
struct hdp_adapter *hdp_adapter;
hdp_adapter = g_new0(struct hdp_adapter, 1);
hdp_adapter->btd_adapter = btd_adapter_ref(adapter);
if(!update_adapter(hdp_adapter))
goto fail;
adapters = g_slist_append(adapters, hdp_adapter);
return 0;
fail:
btd_adapter_unref(hdp_adapter->btd_adapter);
g_free(hdp_adapter);
return -1;
}
void hdp_adapter_unregister(struct btd_adapter *adapter)
{
struct hdp_adapter *hdp_adapter;
GSList *l;
l = g_slist_find_custom(adapters, adapter, cmp_adapter);
if (l == NULL)
return;
hdp_adapter = l->data;
adapters = g_slist_remove(adapters, hdp_adapter);
if (hdp_adapter->sdp_handler > 0)
adapter_service_remove(adapter, hdp_adapter->sdp_handler);
release_adapter_instance(hdp_adapter);
btd_adapter_unref(hdp_adapter->btd_adapter);
g_free(hdp_adapter);
}
static void delete_echo_channel_cb(GError *err, gpointer chan)
{
if (err != NULL && err->code != MCAP_INVALID_MDL) {
/* TODO: Decide if more action is required here */
error("Error deleting echo channel: %s", err->message);
return;
}
health_channel_destroy(chan);
}
static void delete_echo_channel(struct hdp_channel *chan)
{
GError *err = NULL;
if (!chan->dev->mcl_conn) {
error("Echo channel cannot be deleted: mcl closed");
return;
}
if (mcap_delete_mdl(chan->mdl, delete_echo_channel_cb,
hdp_channel_ref(chan),
(GDestroyNotify) hdp_channel_unref, &err))
return;
hdp_channel_unref(chan);
error("Error deleting the echo channel: %s", err->message);
g_error_free(err);
/* TODO: Decide if more action is required here */
}
static void abort_echo_channel_cb(GError *err, gpointer data)
{
struct hdp_channel *chan = data;
if (err != NULL && err->code != MCAP_ERROR_INVALID_OPERATION) {
error("Aborting error: %s", err->message);
if (err->code == MCAP_INVALID_MDL) {
/* MDL is removed from MCAP so we can */
/* free the data channel without sending */
/* a MD_DELETE_MDL_REQ */
/* TODO review the above comment */
/* hdp_channel_unref(chan); */
}
return;
}
delete_echo_channel(chan);
}
static void destroy_create_dc_data(gpointer data)
{
struct hdp_create_dc *dc_data = data;
hdp_create_data_unref(dc_data);
}
static void *generate_echo_packet(void)
{
uint8_t *buf;
int i;
buf = g_malloc(HDP_ECHO_LEN);
srand(time(NULL));
for(i = 0; i < HDP_ECHO_LEN; i++)
buf[i] = rand() % UINT8_MAX;
return buf;
}
static gboolean check_echo(GIOChannel *io_chan, GIOCondition cond,
gpointer data)
{
struct hdp_tmp_dc_data *hdp_conn = data;
struct hdp_echo_data *edata = hdp_conn->hdp_chann->edata;
struct hdp_channel *chan = hdp_conn->hdp_chann;
uint8_t buf[MCAP_DC_MTU];
DBusMessage *reply;
gboolean value;
int fd, len;
if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) {
value = FALSE;
goto end;
}
fd = g_io_channel_unix_get_fd(io_chan);
len = read(fd, buf, sizeof(buf));
if (len != HDP_ECHO_LEN) {
value = FALSE;
goto end;
}
value = (memcmp(buf, edata->buf, len) == 0);
end:
reply = g_dbus_create_reply(hdp_conn->msg, DBUS_TYPE_BOOLEAN, &value,
DBUS_TYPE_INVALID);
g_dbus_send_message(btd_get_dbus_connection(), reply);
g_source_remove(edata->tid);
edata->tid = 0;
g_free(edata->buf);
edata->buf = NULL;
if (!value)
close_device_con(chan->dev, FALSE);
else
delete_echo_channel(chan);
hdp_tmp_dc_data_unref(hdp_conn);
return FALSE;
}
static gboolean echo_timeout(gpointer data)
{
struct hdp_channel *chan = data;
GIOChannel *io;
int fd;
error("Error: Echo request timeout");
chan->edata->tid = 0;
fd = mcap_mdl_get_fd(chan->mdl);
if (fd < 0)
return FALSE;
io = g_io_channel_unix_new(fd);
g_io_channel_shutdown(io, TRUE, NULL);
return FALSE;
}
static void hdp_echo_connect_cb(struct mcap_mdl *mdl, GError *err,
gpointer data)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_tmp_dc_data *hdp_conn = data;
struct hdp_echo_data *edata;
GError *gerr = NULL;
DBusMessage *reply;
GIOChannel *io;
int fd;
if (err != NULL) {
reply = g_dbus_create_error(hdp_conn->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_dbus_send_message(conn, reply);
/* Send abort request because remote */
/* side is now in PENDING state. */
if (!mcap_mdl_abort(hdp_conn->hdp_chann->mdl,
abort_echo_channel_cb,
hdp_channel_ref(hdp_conn->hdp_chann),
(GDestroyNotify) hdp_channel_unref,
&gerr)) {
error("%s", gerr->message);
g_error_free(gerr);
hdp_channel_unref(hdp_conn->hdp_chann);
}
return;
}
fd = mcap_mdl_get_fd(hdp_conn->hdp_chann->mdl);
if (fd < 0) {
reply = g_dbus_create_error(hdp_conn->msg,
ERROR_INTERFACE ".HealthError",
"Can't write in echo channel");
g_dbus_send_message(conn, reply);
delete_echo_channel(hdp_conn->hdp_chann);
return;
}
edata = hdp_conn->hdp_chann->edata;
edata->buf = generate_echo_packet();
send_echo_data(fd, edata->buf, HDP_ECHO_LEN);
io = g_io_channel_unix_new(fd);
g_io_add_watch(io, G_IO_ERR | G_IO_HUP | G_IO_NVAL | G_IO_IN,
check_echo, hdp_tmp_dc_data_ref(hdp_conn));
edata->tid = g_timeout_add_seconds_full(G_PRIORITY_DEFAULT,
ECHO_TIMEOUT, echo_timeout,
hdp_channel_ref(hdp_conn->hdp_chann),
(GDestroyNotify) hdp_channel_unref);
g_io_channel_unref(io);
}
static void delete_mdl_cb(GError *err, gpointer data)
{
if (err != NULL)
error("Deleting error: %s", err->message);
}
static void abort_and_del_mdl_cb(GError *err, gpointer data)
{
struct mcap_mdl *mdl = data;
GError *gerr = NULL;
if (err != NULL) {
error("%s", err->message);
if (err->code == MCAP_INVALID_MDL) {
/* MDL is removed from MCAP so we don't */
/* need to delete it. */
return;
}
}
if (!mcap_delete_mdl(mdl, delete_mdl_cb, NULL, NULL, &gerr)) {
error("%s", gerr->message);
g_error_free(gerr);
}
}
static void abort_mdl_connection_cb(GError *err, gpointer data)
{
struct hdp_tmp_dc_data *hdp_conn = data;
struct hdp_channel *hdp_chann = hdp_conn->hdp_chann;
if (err != NULL)
error("Aborting error: %s", err->message);
/* Connection operation has failed but we have to */
/* notify the channel created at MCAP level */
if (hdp_chann->mdep != HDP_MDEP_ECHO)
g_dbus_emit_signal(btd_get_dbus_connection(),
device_get_path(hdp_chann->dev->dev),
HEALTH_DEVICE, "ChannelConnected",
DBUS_TYPE_OBJECT_PATH, &hdp_chann->path,
DBUS_TYPE_INVALID);
}
static void hdp_mdl_conn_cb(struct mcap_mdl *mdl, GError *err, gpointer data)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_tmp_dc_data *hdp_conn = data;
struct hdp_channel *hdp_chann = hdp_conn->hdp_chann;
struct hdp_device *dev = hdp_chann->dev;
DBusMessage *reply;
GError *gerr = NULL;
if (err != NULL) {
error("%s", err->message);
reply = g_dbus_create_reply(hdp_conn->msg,
DBUS_TYPE_OBJECT_PATH, &hdp_chann->path,
DBUS_TYPE_INVALID);
g_dbus_send_message(conn, reply);
/* Send abort request because remote side */
/* is now in PENDING state */
if (!mcap_mdl_abort(hdp_chann->mdl, abort_mdl_connection_cb,
hdp_tmp_dc_data_ref(hdp_conn),
hdp_tmp_dc_data_destroy, &gerr)) {
hdp_tmp_dc_data_unref(hdp_conn);
error("%s", gerr->message);
g_error_free(gerr);
}
return;
}
reply = g_dbus_create_reply(hdp_conn->msg,
DBUS_TYPE_OBJECT_PATH, &hdp_chann->path,
DBUS_TYPE_INVALID);
g_dbus_send_message(conn, reply);
g_dbus_emit_signal(conn, device_get_path(hdp_chann->dev->dev),
HEALTH_DEVICE, "ChannelConnected",
DBUS_TYPE_OBJECT_PATH, &hdp_chann->path,
DBUS_TYPE_INVALID);
if (!check_channel_conf(hdp_chann)) {
close_mdl(hdp_chann);
return;
}
if (dev->fr != NULL)
return;
dev->fr = hdp_channel_ref(hdp_chann);
g_dbus_emit_property_changed(btd_get_dbus_connection(),
device_get_path(dev->dev), HEALTH_DEVICE,
"MainChannel");
}
static void device_create_mdl_cb(struct mcap_mdl *mdl, uint8_t conf,
GError *err, gpointer data)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_create_dc *user_data = data;
struct hdp_tmp_dc_data *hdp_conn;
struct hdp_channel *hdp_chan;
GError *gerr = NULL;
DBusMessage *reply;
if (err != NULL) {
reply = g_dbus_create_error(user_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_dbus_send_message(conn, reply);
return;
}
if (user_data->mdep != HDP_MDEP_ECHO &&
user_data->config == HDP_NO_PREFERENCE_DC) {
if (user_data->dev->fr == NULL && conf != HDP_RELIABLE_DC) {
g_set_error(&gerr, HDP_ERROR, HDP_CONNECTION_ERROR,
"Data channel aborted, first data "
"channel should be reliable");
goto fail;
} else if (conf == HDP_NO_PREFERENCE_DC ||
conf > HDP_STREAMING_DC) {
g_set_error(&gerr, HDP_ERROR, HDP_CONNECTION_ERROR,
"Data channel aborted, "
"configuration error");
goto fail;
}
}
hdp_chan = create_channel(user_data->dev, conf, mdl,
mcap_mdl_get_mdlid(mdl),
user_data->app, &gerr);
if (hdp_chan == NULL)
goto fail;
hdp_conn = g_new0(struct hdp_tmp_dc_data, 1);
hdp_conn->msg = dbus_message_ref(user_data->msg);
hdp_conn->hdp_chann = hdp_chan;
hdp_conn->cb = user_data->cb;
hdp_chan->mdep = user_data->mdep;
if (hdp_get_dcpsm(hdp_chan->dev, hdp_get_dcpsm_cb,
hdp_tmp_dc_data_ref(hdp_conn),
hdp_tmp_dc_data_destroy, &gerr))
return;
error("%s", gerr->message);
g_error_free(gerr);
reply = g_dbus_create_reply(hdp_conn->msg,
DBUS_TYPE_OBJECT_PATH, &hdp_chan->path,
DBUS_TYPE_INVALID);
g_dbus_send_message(conn, reply);
hdp_tmp_dc_data_unref(hdp_conn);
/* Send abort request because remote side is now in PENDING state */
if (!mcap_mdl_abort(hdp_chan->mdl, abort_mdl_connection_cb,
hdp_tmp_dc_data_ref(hdp_conn),
hdp_tmp_dc_data_destroy, &gerr)) {
hdp_tmp_dc_data_unref(hdp_conn);
error("%s", gerr->message);
g_error_free(gerr);
}
return;
fail:
reply = g_dbus_create_error(user_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", gerr->message);
g_dbus_send_message(conn, reply);
g_error_free(gerr);
/* Send abort request because remote side is now in PENDING */
/* state. Then we have to delete it because we couldn't */
/* register the HealthChannel interface */
if (!mcap_mdl_abort(mdl, abort_and_del_mdl_cb, mcap_mdl_ref(mdl),
(GDestroyNotify) mcap_mdl_unref, &gerr)) {
error("%s", gerr->message);
g_error_free(gerr);
mcap_mdl_unref(mdl);
}
}
static void device_create_dc_cb(gpointer user_data, GError *err)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_create_dc *data = user_data;
DBusMessage *reply;
GError *gerr = NULL;
if (err != NULL) {
reply = g_dbus_create_error(data->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_dbus_send_message(conn, reply);
return;
}
if (data->dev->mcl == NULL) {
g_set_error(&gerr, HDP_ERROR, HDP_CONNECTION_ERROR,
"Mcl was closed");
goto fail;
}
hdp_create_data_ref(data);
if (mcap_create_mdl(data->dev->mcl, data->mdep, data->config,
device_create_mdl_cb, data,
destroy_create_dc_data, &gerr))
return;
hdp_create_data_unref(data);
fail:
reply = g_dbus_create_error(data->msg, ERROR_INTERFACE ".HealthError",
"%s", gerr->message);
g_error_free(gerr);
g_dbus_send_message(conn, reply);
}
static DBusMessage *device_echo(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct hdp_device *device = user_data;
struct hdp_create_dc *data;
DBusMessage *reply;
GError *err = NULL;
data = g_new0(struct hdp_create_dc, 1);
data->dev = health_device_ref(device);
data->mdep = HDP_MDEP_ECHO;
data->config = HDP_RELIABLE_DC;
data->msg = dbus_message_ref(msg);
data->cb = hdp_echo_connect_cb;
hdp_create_data_ref(data);
if (device->mcl_conn && device->mcl) {
if (mcap_create_mdl(device->mcl, data->mdep, data->config,
device_create_mdl_cb, data,
destroy_create_dc_data, &err))
return NULL;
goto fail;
}
if (hdp_establish_mcl(data->dev, device_create_dc_cb,
data, destroy_create_dc_data, &err))
return NULL;
fail:
reply = g_dbus_create_error(msg, ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_error_free(err);
hdp_create_data_unref(data);
return reply;
}
static void device_get_mdep_cb(uint8_t mdep, gpointer data, GError *err)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_create_dc *dc_data, *user_data = data;
DBusMessage *reply;
GError *gerr = NULL;
if (err != NULL) {
reply = g_dbus_create_error(user_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_dbus_send_message(conn, reply);
return;
}
dc_data = hdp_create_data_ref(user_data);
dc_data->mdep = mdep;
if (user_data->dev->mcl_conn) {
device_create_dc_cb(dc_data, NULL);
hdp_create_data_unref(dc_data);
return;
}
if (hdp_establish_mcl(dc_data->dev, device_create_dc_cb,
dc_data, destroy_create_dc_data, &gerr))
return;
reply = g_dbus_create_error(user_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", gerr->message);
hdp_create_data_unref(dc_data);
g_error_free(gerr);
g_dbus_send_message(conn, reply);
}
static DBusMessage *device_create_channel(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct hdp_device *device = user_data;
struct hdp_application *app;
struct hdp_create_dc *data;
char *app_path, *conf;
DBusMessage *reply;
GError *err = NULL;
uint8_t config;
GSList *l;
if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &app_path,
DBUS_TYPE_STRING, &conf,
DBUS_TYPE_INVALID))
return btd_error_invalid_args(msg);
l = g_slist_find_custom(applications, app_path, cmp_app);
if (l == NULL)
return btd_error_invalid_args(msg);
app = l->data;
if (g_ascii_strcasecmp("reliable", conf) == 0)
config = HDP_RELIABLE_DC;
else if (g_ascii_strcasecmp("streaming", conf) == 0)
config = HDP_STREAMING_DC;
else if (g_ascii_strcasecmp("any", conf) == 0)
config = HDP_NO_PREFERENCE_DC;
else
return btd_error_invalid_args(msg);
if (app->role == HDP_SINK && config != HDP_NO_PREFERENCE_DC)
return btd_error_invalid_args(msg);
if (app->role == HDP_SOURCE && config == HDP_NO_PREFERENCE_DC)
return btd_error_invalid_args(msg);
if (!device->fr && config == HDP_STREAMING_DC)
return btd_error_invalid_args(msg);
data = g_new0(struct hdp_create_dc, 1);
data->dev = health_device_ref(device);
data->config = config;
data->app = hdp_application_ref(app);
data->msg = dbus_message_ref(msg);
data->cb = hdp_mdl_conn_cb;
if (hdp_get_mdep(device, l->data, device_get_mdep_cb,
hdp_create_data_ref(data),
destroy_create_dc_data, &err))
return NULL;
reply = g_dbus_create_error(msg, ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_error_free(err);
hdp_create_data_unref(data);
return reply;
}
static void hdp_mdl_delete_cb(GError *err, gpointer data)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_tmp_dc_data *del_data = data;
DBusMessage *reply;
char *path;
if (err != NULL && err->code != MCAP_INVALID_MDL) {
reply = g_dbus_create_error(del_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_dbus_send_message(conn, reply);
return;
}
path = g_strdup(del_data->hdp_chann->path);
g_dbus_unregister_interface(conn, path, HEALTH_CHANNEL);
g_free(path);
reply = g_dbus_create_reply(del_data->msg, DBUS_TYPE_INVALID);
g_dbus_send_message(conn, reply);
}
static void hdp_continue_del_cb(gpointer user_data, GError *err)
{
DBusConnection *conn = btd_get_dbus_connection();
struct hdp_tmp_dc_data *del_data = user_data;
GError *gerr = NULL;
DBusMessage *reply;
if (err != NULL) {
reply = g_dbus_create_error(del_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", err->message);
g_dbus_send_message(conn, reply);
return;
}
if (mcap_delete_mdl(del_data->hdp_chann->mdl, hdp_mdl_delete_cb,
hdp_tmp_dc_data_ref(del_data),
hdp_tmp_dc_data_destroy, &gerr))
return;
reply = g_dbus_create_error(del_data->msg,
ERROR_INTERFACE ".HealthError",
"%s", gerr->message);
hdp_tmp_dc_data_unref(del_data);
g_error_free(gerr);
g_dbus_send_message(conn, reply);
}
static DBusMessage *device_destroy_channel(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct hdp_device *device = user_data;
struct hdp_tmp_dc_data *del_data;
struct hdp_channel *hdp_chan;
DBusMessage *reply;
GError *err = NULL;
char *path;
GSList *l;
if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)){
return btd_error_invalid_args(msg);
}
l = g_slist_find_custom(device->channels, path, cmp_chan_path);
if (l == NULL)
return btd_error_invalid_args(msg);
hdp_chan = l->data;
del_data = g_new0(struct hdp_tmp_dc_data, 1);
del_data->msg = dbus_message_ref(msg);
del_data->hdp_chann = hdp_channel_ref(hdp_chan);
if (device->mcl_conn) {
if (mcap_delete_mdl(hdp_chan->mdl, hdp_mdl_delete_cb,
hdp_tmp_dc_data_ref(del_data),
hdp_tmp_dc_data_destroy, &err))
return NULL;
goto fail;
}
if (hdp_establish_mcl(device, hdp_continue_del_cb,
hdp_tmp_dc_data_ref(del_data),
hdp_tmp_dc_data_destroy, &err))
return NULL;
fail:
reply = g_dbus_create_error(msg, ERROR_INTERFACE ".HealthError",
"%s", err->message);
hdp_tmp_dc_data_unref(del_data);
g_error_free(err);
return reply;
}
static gboolean dev_property_exists_main_channel(
const GDBusPropertyTable *property, void *data)
{
struct hdp_device *device = data;
return device->fr != NULL;
}
static gboolean dev_property_get_main_channel(
const GDBusPropertyTable *property,
DBusMessageIter *iter, void *data)
{
struct hdp_device *device = data;
if (device->fr == NULL)
return FALSE;
dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
&device->fr->path);
return TRUE;
}
static void health_device_destroy(void *data)
{
struct hdp_device *device = data;
DBG("Unregistered interface %s on path %s", HEALTH_DEVICE,
device_get_path(device->dev));
remove_channels(device);
if (device->ndc != NULL) {
hdp_channel_unref(device->ndc);
device->ndc = NULL;
}
devices = g_slist_remove(devices, device);
health_device_unref(device);
}
static const GDBusMethodTable health_device_methods[] = {
{ GDBUS_ASYNC_METHOD("Echo",
NULL, GDBUS_ARGS({ "value", "b" }), device_echo) },
{ GDBUS_ASYNC_METHOD("CreateChannel",
GDBUS_ARGS({ "application", "o" },
{ "configuration", "s" }),
GDBUS_ARGS({ "channel", "o" }),
device_create_channel) },
{ GDBUS_ASYNC_METHOD("DestroyChannel",
GDBUS_ARGS({ "channel", "o" }), NULL,
device_destroy_channel) },
{ }
};
static const GDBusSignalTable health_device_signals[] = {
{ GDBUS_SIGNAL("ChannelConnected",
GDBUS_ARGS({ "channel", "o" })) },
{ GDBUS_SIGNAL("ChannelDeleted",
GDBUS_ARGS({ "channel", "o" })) },
{ }
};
static const GDBusPropertyTable health_device_properties[] = {
{ "MainChannel", "o", dev_property_get_main_channel, NULL,
dev_property_exists_main_channel },
{ }
};
static struct hdp_device *create_health_device(struct btd_device *device)
{
struct btd_adapter *adapter = device_get_adapter(device);
const char *path = device_get_path(device);
struct hdp_device *dev;
GSList *l;
if (device == NULL)
return NULL;
dev = g_new0(struct hdp_device, 1);
dev->dev = btd_device_ref(device);
health_device_ref(dev);
l = g_slist_find_custom(adapters, adapter, cmp_adapter);
if (l == NULL)
goto fail;
dev->hdp_adapter = l->data;
if (!g_dbus_register_interface(btd_get_dbus_connection(),
path, HEALTH_DEVICE,
health_device_methods,
health_device_signals,
health_device_properties,
dev, health_device_destroy)) {
error("D-Bus failed to register %s interface", HEALTH_DEVICE);
goto fail;
}
DBG("Registered interface %s on path %s", HEALTH_DEVICE, path);
return dev;
fail:
health_device_unref(dev);
return NULL;
}
int hdp_device_register(struct btd_device *device)
{
struct hdp_device *hdev;
GSList *l;
l = g_slist_find_custom(devices, device, cmp_device);
if (l != NULL) {
hdev = l->data;
hdev->sdp_present = TRUE;
return 0;
}
hdev = create_health_device(device);
if (hdev == NULL)
return -1;
hdev->sdp_present = TRUE;
devices = g_slist_prepend(devices, hdev);
return 0;
}
void hdp_device_unregister(struct btd_device *device)
{
struct hdp_device *hdp_dev;
const char *path;
GSList *l;
l = g_slist_find_custom(devices, device, cmp_device);
if (l == NULL)
return;
hdp_dev = l->data;
path = device_get_path(hdp_dev->dev);
g_dbus_unregister_interface(btd_get_dbus_connection(),
path, HEALTH_DEVICE);
}
int hdp_manager_start(void)
{
DBG("Starting Health manager");
if (!g_dbus_register_interface(btd_get_dbus_connection(),
MANAGER_PATH, HEALTH_MANAGER,
health_manager_methods, NULL, NULL,
NULL, manager_path_unregister)) {
error("D-Bus failed to register %s interface", HEALTH_MANAGER);
return -1;
}
return 0;
}
void hdp_manager_stop(void)
{
g_dbus_unregister_interface(btd_get_dbus_connection(),
MANAGER_PATH, HEALTH_MANAGER);
DBG("Stopped Health manager");
}
struct hdp_device *health_device_ref(struct hdp_device *hdp_dev)
{
hdp_dev->ref++;
DBG("(%p): ref=%d", hdp_dev, hdp_dev->ref);
return hdp_dev;
}
void health_device_unref(struct hdp_device *hdp_dev)
{
hdp_dev->ref--;
DBG("(%p): ref=%d", hdp_dev, hdp_dev->ref);
if (hdp_dev->ref > 0)
return;
free_health_device(hdp_dev);
}