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health.c
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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2014 Intel Corporation. All rights reserved.
* Copyright (C) 2010 GSyC/LibreSoft, Universidad Rey Juan Carlos.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; 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 <stdint.h>
#include <stdbool.h>
#include <errno.h>
#include <unistd.h>
#include <glib.h>
#include "btio/btio.h"
#include "lib/bluetooth.h"
#include "lib/sdp.h"
#include "lib/sdp_lib.h"
#include "lib/uuid.h"
#include "lib/l2cap.h"
#include "src/log.h"
#include "src/shared/util.h"
#include "src/shared/queue.h"
#include "src/uuid-helper.h"
#include "src/sdp-client.h"
#include "profiles/health/mcap.h"
#include "hal-msg.h"
#include "ipc-common.h"
#include "ipc.h"
#include "utils.h"
#include "bluetooth.h"
#include "health.h"
#define SVC_HINT_HEALTH 0x00
#define HDP_VERSION 0x0101
#define DATA_EXCHANGE_SPEC_11073 0x01
#define CHANNEL_TYPE_ANY 0x00
#define CHANNEL_TYPE_RELIABLE 0x01
#define CHANNEL_TYPE_STREAM 0x02
#define MDEP_ECHO 0x00
#define MDEP_INITIAL 0x01
#define MDEP_FINAL 0x7F
static bdaddr_t adapter_addr;
static struct ipc *hal_ipc = NULL;
static struct queue *apps = NULL;
static struct mcap_instance *mcap = NULL;
static uint32_t record_id = 0;
static uint32_t record_state = 0;
struct mdep_cfg {
uint8_t role;
uint16_t data_type;
uint8_t channel_type;
char *descr;
uint8_t id; /* mdep id */
};
struct health_device {
bdaddr_t dst;
uint16_t app_id;
struct mcap_mcl *mcl;
struct queue *channels; /* data channels */
uint16_t ccpsm;
uint16_t dcpsm;
};
struct health_channel {
uint8_t mdep_id;
uint8_t type;
struct health_device *dev;
uint8_t remote_mdep;
struct mcap_mdl *mdl;
bool mdl_conn;
uint16_t mdl_id; /* MDL ID */
uint16_t id; /* channel id */
};
struct health_app {
char *app_name;
char *provider_name;
char *service_name;
char *service_descr;
uint8_t num_of_mdep;
struct queue *mdeps;
uint16_t id; /* app id */
struct queue *devices;
};
static void send_app_reg_notify(struct health_app *app, uint8_t state)
{
struct hal_ev_health_app_reg_state ev;
DBG("");
ev.id = app->id;
ev.state = state;
ipc_send_notif(hal_ipc, HAL_SERVICE_ID_HEALTH,
HAL_EV_HEALTH_APP_REG_STATE, sizeof(ev), &ev);
}
static void send_channel_state_notify(struct health_channel *channel,
uint8_t state, int fd)
{
struct hal_ev_health_channel_state ev;
DBG("");
bdaddr2android(&channel->dev->dst, ev.bdaddr);
ev.app_id = channel->dev->app_id;
ev.mdep_index = channel->mdep_id - 1;
ev.channel_id = channel->id;
ev.channel_state = state;
ipc_send_notif_with_fd(hal_ipc, HAL_SERVICE_ID_HEALTH,
HAL_EV_HEALTH_CHANNEL_STATE,
sizeof(ev), &ev, fd);
}
static void unref_mdl(struct health_channel *channel)
{
if (!channel || !channel->mdl)
return;
mcap_mdl_unref(channel->mdl);
channel->mdl = NULL;
channel->mdl_conn = false;
}
static void free_health_channel(void *data)
{
struct health_channel *channel = data;
int fd;
DBG("channel %p", channel);
if (!channel)
return;
fd = mcap_mdl_get_fd(channel->mdl);
if (fd >= 0)
shutdown(fd, SHUT_RDWR);
unref_mdl(channel);
free(channel);
}
static void destroy_channel(void *data)
{
struct health_channel *channel = data;
if (!channel)
return;
send_channel_state_notify(channel, HAL_HEALTH_CHANNEL_DESTROYED, -1);
queue_remove(channel->dev->channels, channel);
free_health_channel(channel);
}
static void unref_mcl(struct health_device *dev)
{
if (!dev || !dev->mcl)
return;
mcap_close_mcl(dev->mcl, FALSE);
mcap_mcl_unref(dev->mcl);
dev->mcl = NULL;
}
static void free_health_device(void *data)
{
struct health_device *dev = data;
if (!dev)
return;
unref_mcl(dev);
queue_destroy(dev->channels, free_health_channel);
free(dev);
}
static void free_mdep_cfg(void *data)
{
struct mdep_cfg *cfg = data;
if (!cfg)
return;
free(cfg->descr);
free(cfg);
}
static void free_health_app(void *data)
{
struct health_app *app = data;
if (!app)
return;
free(app->app_name);
free(app->provider_name);
free(app->service_name);
free(app->service_descr);
queue_destroy(app->mdeps, free_mdep_cfg);
queue_destroy(app->devices, free_health_device);
free(app);
}
static bool match_channel_by_mdl(const void *data, const void *user_data)
{
const struct health_channel *channel = data;
const struct mcap_mdl *mdl = user_data;
return channel->mdl == mdl;
}
static bool match_channel_by_id(const void *data, const void *user_data)
{
const struct health_channel *channel = data;
uint16_t channel_id = PTR_TO_INT(user_data);
return channel->id == channel_id;
}
static bool match_dev_by_mcl(const void *data, const void *user_data)
{
const struct health_device *dev = data;
const struct mcap_mcl *mcl = user_data;
return dev->mcl == mcl;
}
static bool match_dev_by_addr(const void *data, const void *user_data)
{
const struct health_device *dev = data;
const bdaddr_t *addr = user_data;
return !bacmp(&dev->dst, addr);
}
static bool match_channel_by_mdep_id(const void *data, const void *user_data)
{
const struct health_channel *channel = data;
uint16_t mdep_id = PTR_TO_INT(user_data);
return channel->mdep_id == mdep_id;
}
static bool match_mdep_by_role(const void *data, const void *user_data)
{
const struct mdep_cfg *mdep = data;
uint16_t role = PTR_TO_INT(user_data);
return mdep->role == role;
}
static bool match_mdep_by_id(const void *data, const void *user_data)
{
const struct mdep_cfg *mdep = data;
uint16_t mdep_id = PTR_TO_INT(user_data);
return mdep->id == mdep_id;
}
static bool match_app_by_id(const void *data, const void *user_data)
{
const struct health_app *app = data;
uint16_t app_id = PTR_TO_INT(user_data);
return app->id == app_id;
}
static struct health_channel *search_channel_by_id(uint16_t id)
{
const struct queue_entry *apps_entry, *devices_entry;
struct health_app *app;
struct health_channel *channel;
struct health_device *dev;
DBG("");
apps_entry = queue_get_entries(apps);
while (apps_entry) {
app = apps_entry->data;
devices_entry = queue_get_entries(app->devices);
while (devices_entry) {
dev = devices_entry->data;
channel = queue_find(dev->channels, match_channel_by_id,
INT_TO_PTR(id));
if (channel)
return channel;
devices_entry = devices_entry->next;
}
apps_entry = apps_entry->next;
}
return NULL;
}
static struct health_channel *search_channel_by_mdl(struct mcap_mdl *mdl)
{
const struct queue_entry *apps_entry, *devices_entry;
struct health_app *app;
struct health_channel *channel;
struct health_device *dev;
DBG("");
apps_entry = queue_get_entries(apps);
while (apps_entry) {
app = apps_entry->data;
devices_entry = queue_get_entries(app->devices);
while (devices_entry) {
dev = devices_entry->data;
channel = queue_find(dev->channels,
match_channel_by_mdl, mdl);
if (channel)
return channel;
devices_entry = devices_entry->next;
}
apps_entry = apps_entry->next;
}
return NULL;
}
static struct health_device *search_dev_by_mcl(struct mcap_mcl *mcl)
{
const struct queue_entry *apps_entry;
struct health_app *app;
struct health_device *dev;
DBG("");
apps_entry = queue_get_entries(apps);
while (apps_entry) {
app = apps_entry->data;
dev = queue_find(app->devices, match_dev_by_mcl, mcl);
if (dev)
return dev;
apps_entry = apps_entry->next;
}
return NULL;
}
static struct health_app *search_app_by_mdepid(uint8_t mdepid)
{
const struct queue_entry *apps_entry;
struct health_app *app;
DBG("");
apps_entry = queue_get_entries(apps);
while (apps_entry) {
app = apps_entry->data;
if (queue_find(app->mdeps, match_mdep_by_id,
INT_TO_PTR(mdepid)))
return app;
apps_entry = apps_entry->next;
}
return NULL;
}
static int register_service_protocols(sdp_record_t *rec,
struct health_app *app)
{
uuid_t l2cap_uuid, mcap_c_uuid;
sdp_list_t *l2cap_list, *proto_list = NULL, *mcap_list = NULL;
sdp_list_t *access_proto_list = NULL;
sdp_data_t *psm = NULL, *mcap_ver = NULL;
uint32_t ccpsm;
uint16_t version = MCAP_VERSION;
GError *err = NULL;
int ret = -1;
DBG("");
/* set l2cap information */
sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
l2cap_list = sdp_list_append(NULL, &l2cap_uuid);
if (!l2cap_list)
goto fail;
ccpsm = mcap_get_ctrl_psm(mcap, &err);
if (err)
goto fail;
psm = sdp_data_alloc(SDP_UINT16, &ccpsm);
if (!psm)
goto fail;
if (!sdp_list_append(l2cap_list, psm))
goto fail;
proto_list = sdp_list_append(NULL, l2cap_list);
if (!proto_list)
goto fail;
/* set mcap information */
sdp_uuid16_create(&mcap_c_uuid, MCAP_CTRL_UUID);
mcap_list = sdp_list_append(NULL, &mcap_c_uuid);
if (!mcap_list)
goto fail;
mcap_ver = sdp_data_alloc(SDP_UINT16, &version);
if (!mcap_ver)
goto fail;
if (!sdp_list_append(mcap_list, mcap_ver))
goto fail;
if (!sdp_list_append(proto_list, mcap_list))
goto fail;
/* attach protocol information to service record */
access_proto_list = sdp_list_append(NULL, proto_list);
if (!access_proto_list)
goto fail;
sdp_set_access_protos(rec, access_proto_list);
ret = 0;
fail:
sdp_list_free(l2cap_list, NULL);
sdp_list_free(mcap_list, NULL);
sdp_list_free(proto_list, NULL);
sdp_list_free(access_proto_list, NULL);
if (psm)
sdp_data_free(psm);
if (mcap_ver)
sdp_data_free(mcap_ver);
if (err)
g_error_free(err);
return ret;
}
static int register_service_profiles(sdp_record_t *rec)
{
int ret;
sdp_list_t *profile_list;
sdp_profile_desc_t hdp_profile;
DBG("");
/* set hdp information */
sdp_uuid16_create(&hdp_profile.uuid, HDP_SVCLASS_ID);
hdp_profile.version = HDP_VERSION;
profile_list = sdp_list_append(NULL, &hdp_profile);
if (!profile_list)
return -1;
/* set profile descriptor list */
ret = sdp_set_profile_descs(rec, profile_list);
sdp_list_free(profile_list, NULL);
return ret;
}
static int register_service_additional_protocols(sdp_record_t *rec,
struct health_app *app)
{
int ret = -1;
uuid_t l2cap_uuid, mcap_d_uuid;
sdp_list_t *l2cap_list, *proto_list = NULL, *mcap_list = NULL;
sdp_list_t *access_proto_list = NULL;
sdp_data_t *psm = NULL;
uint32_t dcpsm;
GError *err = NULL;
DBG("");
/* set l2cap information */
sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
l2cap_list = sdp_list_append(NULL, &l2cap_uuid);
if (!l2cap_list)
goto fail;
dcpsm = mcap_get_data_psm(mcap, &err);
if (err)
goto fail;
psm = sdp_data_alloc(SDP_UINT16, &dcpsm);
if (!psm)
goto fail;
if (!sdp_list_append(l2cap_list, psm))
goto fail;
proto_list = sdp_list_append(NULL, l2cap_list);
if (!proto_list)
goto fail;
/* set mcap information */
sdp_uuid16_create(&mcap_d_uuid, MCAP_DATA_UUID);
mcap_list = sdp_list_append(NULL, &mcap_d_uuid);
if (!mcap_list)
goto fail;
if (!sdp_list_append(proto_list, mcap_list))
goto fail;
/* attach protocol information to service record */
access_proto_list = sdp_list_append(NULL, proto_list);
if (!access_proto_list)
goto fail;
sdp_set_add_access_protos(rec, access_proto_list);
ret = 0;
fail:
sdp_list_free(l2cap_list, NULL);
sdp_list_free(mcap_list, NULL);
sdp_list_free(proto_list, NULL);
sdp_list_free(access_proto_list, NULL);
if (psm)
sdp_data_free(psm);
if (err)
g_error_free(err);
return ret;
}
static sdp_list_t *mdeps_to_sdp_features(struct mdep_cfg *mdep)
{
sdp_data_t *mdepid, *dtype = NULL, *role = NULL, *descr = NULL;
sdp_list_t *f_list = NULL;
DBG("");
mdepid = sdp_data_alloc(SDP_UINT8, &mdep->id);
if (!mdepid)
return NULL;
dtype = sdp_data_alloc(SDP_UINT16, &mdep->data_type);
if (!dtype)
goto fail;
role = sdp_data_alloc(SDP_UINT8, &mdep->role);
if (!role)
goto fail;
if (mdep->descr) {
descr = sdp_data_alloc(SDP_TEXT_STR8, mdep->descr);
if (!descr)
goto fail;
}
f_list = sdp_list_append(NULL, mdepid);
if (!f_list)
goto fail;
if (!sdp_list_append(f_list, dtype))
goto fail;
if (!sdp_list_append(f_list, role))
goto fail;
if (descr && !sdp_list_append(f_list, descr))
goto fail;
return f_list;
fail:
sdp_list_free(f_list, NULL);
if (mdepid)
sdp_data_free(mdepid);
if (dtype)
sdp_data_free(dtype);
if (role)
sdp_data_free(role);
if (descr)
sdp_data_free(descr);
return NULL;
}
static void free_hdp_list(void *list)
{
sdp_list_t *hdp_list = list;
sdp_list_free(hdp_list, (sdp_free_func_t)sdp_data_free);
}
static void register_features(void *data, void *user_data)
{
struct mdep_cfg *mdep = data;
sdp_list_t **sup_features = user_data;
sdp_list_t *hdp_feature;
DBG("");
hdp_feature = mdeps_to_sdp_features(mdep);
if (!hdp_feature)
return;
if (!*sup_features) {
*sup_features = sdp_list_append(NULL, hdp_feature);
if (!*sup_features)
sdp_list_free(hdp_feature,
(sdp_free_func_t)sdp_data_free);
} else if (!sdp_list_append(*sup_features, hdp_feature)) {
sdp_list_free(hdp_feature,
(sdp_free_func_t)sdp_data_free);
}
}
static int register_service_sup_features(sdp_record_t *rec,
struct health_app *app)
{
sdp_list_t *sup_features = NULL;
DBG("");
queue_foreach(app->mdeps, register_features, &sup_features);
if (!sup_features)
return -1;
if (sdp_set_supp_feat(rec, sup_features) < 0) {
sdp_list_free(sup_features, free_hdp_list);
return -1;
}
sdp_list_free(sup_features, free_hdp_list);
return 0;
}
static int register_data_exchange_spec(sdp_record_t *rec)
{
sdp_data_t *spec;
uint8_t data_spec = DATA_EXCHANGE_SPEC_11073;
/* As of now only 11073 is supported, so we set it as default */
DBG("");
spec = sdp_data_alloc(SDP_UINT8, &data_spec);
if (!spec)
return -1;
if (sdp_attr_add(rec, SDP_ATTR_DATA_EXCHANGE_SPEC, spec) < 0) {
sdp_data_free(spec);
return -1;
}
return 0;
}
static int register_mcap_features(sdp_record_t *rec)
{
sdp_data_t *mcap_proc;
uint8_t mcap_sup_proc = MCAP_SUP_PROC;
DBG("");
mcap_proc = sdp_data_alloc(SDP_UINT8, &mcap_sup_proc);
if (!mcap_proc)
return -1;
if (sdp_attr_add(rec, SDP_ATTR_MCAP_SUPPORTED_PROCEDURES,
mcap_proc) < 0) {
sdp_data_free(mcap_proc);
return -1;
}
return 0;
}
static int set_sdp_services_uuid(sdp_record_t *rec, uint8_t role)
{
uuid_t source, sink;
sdp_list_t *list = NULL;
sdp_uuid16_create(&sink, HDP_SINK_SVCLASS_ID);
sdp_uuid16_create(&source, HDP_SOURCE_SVCLASS_ID);
sdp_get_service_classes(rec, &list);
switch (role) {
case HAL_HEALTH_MDEP_ROLE_SOURCE:
if (!sdp_list_find(list, &source, sdp_uuid_cmp))
list = sdp_list_append(list, &source);
break;
case HAL_HEALTH_MDEP_ROLE_SINK:
if (!sdp_list_find(list, &sink, sdp_uuid_cmp))
list = sdp_list_append(list, &sink);
break;
}
if (sdp_set_service_classes(rec, list) < 0) {
sdp_list_free(list, NULL);
return -1;
}
sdp_list_free(list, NULL);
return 0;
}
static int update_sdp_record(struct health_app *app)
{
sdp_record_t *rec;
uint8_t role;
DBG("");
if (record_id > 0) {
bt_adapter_remove_record(record_id);
record_id = 0;
}
rec = sdp_record_alloc();
if (!rec)
return -1;
role = HAL_HEALTH_MDEP_ROLE_SOURCE;
if (queue_find(app->mdeps, match_mdep_by_role, INT_TO_PTR(role)))
set_sdp_services_uuid(rec, role);
role = HAL_HEALTH_MDEP_ROLE_SINK;
if (queue_find(app->mdeps, match_mdep_by_role, INT_TO_PTR(role)))
set_sdp_services_uuid(rec, role);
sdp_set_info_attr(rec, app->service_name, app->provider_name,
app->service_descr);
if (register_service_protocols(rec, app) < 0)
goto fail;
if (register_service_profiles(rec) < 0)
goto fail;
if (register_service_additional_protocols(rec, app) < 0)
goto fail;
if (register_service_sup_features(rec, app) < 0)
goto fail;
if (register_data_exchange_spec(rec) < 0)
goto fail;
if (register_mcap_features(rec) < 0)
goto fail;
if (sdp_set_record_state(rec, record_state++) < 0)
goto fail;
if (bt_adapter_add_record(rec, SVC_HINT_HEALTH) < 0) {
error("health: Failed to register HEALTH record");
goto fail;
}
record_id = rec->handle;
return 0;
fail:
sdp_record_free(rec);
return -1;
}
static struct health_app *create_health_app(const char *app_name,
const char *provider, const char *srv_name,
const char *srv_descr, uint8_t mdeps)
{
struct health_app *app;
static unsigned int app_id = 1;
DBG("");
app = new0(struct health_app, 1);
app->id = app_id++;
app->num_of_mdep = mdeps;
app->app_name = strdup(app_name);
if (provider) {
app->provider_name = strdup(provider);
if (!app->provider_name)
goto fail;
}
if (srv_name) {
app->service_name = strdup(srv_name);
if (!app->service_name)
goto fail;
}
if (srv_descr) {
app->service_descr = strdup(srv_descr);
if (!app->service_descr)
goto fail;
}
app->mdeps = queue_new();
app->devices = queue_new();
return app;
fail:
free_health_app(app);
return NULL;
}
static void bt_health_register_app(const void *buf, uint16_t len)
{
const struct hal_cmd_health_reg_app *cmd = buf;
struct hal_rsp_health_reg_app rsp;
struct health_app *app;
uint16_t off;
uint16_t app_name_len, provider_len, srv_name_len, srv_descr_len;
char *app_name, *provider = NULL, *srv_name = NULL, *srv_descr = NULL;
DBG("");
if (len != sizeof(*cmd) + cmd->len ||
cmd->app_name_off > cmd->provider_name_off ||
cmd->provider_name_off > cmd->service_name_off ||
cmd->service_name_off > cmd->service_descr_off ||
cmd->service_descr_off > cmd->len) {
error("health: Invalid register app command, terminating");
raise(SIGTERM);
return;
}
app_name = (char *) cmd->data;
app_name_len = cmd->provider_name_off - cmd->app_name_off;
off = app_name_len;
provider_len = cmd->service_name_off - off;
if (provider_len > 0)
provider = (char *) cmd->data + off;
off += provider_len;
srv_name_len = cmd->service_descr_off - off;
if (srv_name_len > 0)
srv_name = (char *) cmd->data + off;
off += srv_name_len;
srv_descr_len = cmd->len - off;
if (srv_descr_len > 0)
srv_descr = (char *) cmd->data + off;
app = create_health_app(app_name, provider, srv_name, srv_descr,
cmd->num_of_mdep);
if (!app)
goto fail;
queue_push_tail(apps, app);
rsp.app_id = app->id;
ipc_send_rsp_full(hal_ipc, HAL_SERVICE_ID_HEALTH, HAL_OP_HEALTH_REG_APP,
sizeof(rsp), &rsp, -1);
return;
fail:
free_health_app(app);
ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_HEALTH, HAL_OP_HEALTH_MDEP,
HAL_STATUS_FAILED);
}
static uint8_t android2channel_type(uint8_t type)
{
switch (type) {
case HAL_HEALTH_CHANNEL_TYPE_RELIABLE:
return CHANNEL_TYPE_RELIABLE;
case HAL_HEALTH_CHANNEL_TYPE_STREAMING:
return CHANNEL_TYPE_STREAM;
default:
return CHANNEL_TYPE_ANY;
}
}
static void bt_health_mdep_cfg_data(const void *buf, uint16_t len)
{
const struct hal_cmd_health_mdep *cmd = buf;
struct health_app *app;
struct mdep_cfg *mdep = NULL;
uint8_t status;
DBG("");
app = queue_find(apps, match_app_by_id, INT_TO_PTR(cmd->app_id));
if (!app) {
status = HAL_STATUS_INVALID;
goto fail;
}
mdep = new0(struct mdep_cfg, 1);
mdep->role = cmd->role;
mdep->data_type = cmd->data_type;
mdep->channel_type = android2channel_type(cmd->channel_type);
mdep->id = queue_length(app->mdeps) + 1;
if (cmd->descr_len > 0) {
mdep->descr = malloc0(cmd->descr_len);
memcpy(mdep->descr, cmd->descr, cmd->descr_len);
}
queue_push_tail(app->mdeps, mdep);
if (app->num_of_mdep != queue_length(app->mdeps))
goto send_rsp;
/* add sdp record from app configuration data */
/*
* TODO: Check what to be done if mupltple applications are trying to
* register with different role and different configurations.
* 1) Does device supports SOURCE and SINK at the same time ?
* 2) Does it require different SDP records or one record with
* multile MDEP configurations ?
*/
if (update_sdp_record(app) < 0) {
error("health: HDP SDP record preparation failed");
status = HAL_STATUS_FAILED;
goto fail;
}
send_app_reg_notify(app, HAL_HEALTH_APP_REG_SUCCESS);
send_rsp:
ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_HEALTH, HAL_OP_HEALTH_MDEP,
HAL_STATUS_SUCCESS);
return;
fail:
if (status != HAL_STATUS_SUCCESS) {
free_mdep_cfg(mdep);
queue_remove(apps, app);
free_health_app(app);
}
ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_HEALTH, HAL_OP_HEALTH_MDEP,
status);
}
static void bt_health_unregister_app(const void *buf, uint16_t len)
{
const struct hal_cmd_health_unreg_app *cmd = buf;
struct health_app *app;
DBG("");
app = queue_remove_if(apps, match_app_by_id, INT_TO_PTR(cmd->app_id));
if (!app) {
ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_HEALTH,
HAL_OP_HEALTH_UNREG_APP, HAL_STATUS_INVALID);
return;