This makes function flow easier to follow and understand. Besides that
it also fix issue with sending to many bytes if some prop were not
present in EIR.
---
android/bluetooth.c | 141 +++++++++++++++++++++-------------------------------
1 file changed, 57 insertions(+), 84 deletions(-)
diff --git a/android/bluetooth.c b/android/bluetooth.c
index 83f20e2..e3190d1 100644
--- a/android/bluetooth.c
+++ b/android/bluetooth.c
@@ -774,54 +774,32 @@ static void confirm_device_name(const bdaddr_t *addr, uint8_t addr_type)
error("Failed to send confirm name request");
}
-static int fill_device_props(struct hal_property *prop, bdaddr_t *addr,
- uint32_t cod, int8_t rssi, char *name)
-{
- uint8_t num_props = 0;
-
- /* fill Class of Device */
- if (cod) {
- prop->type = HAL_PROP_DEVICE_CLASS;
- prop->len = sizeof(cod);
- memcpy(prop->val, &cod, prop->len);
- prop = ((void *) prop) + sizeof(*prop) + sizeof(cod);
- num_props++;
- }
- /* fill RSSI */
- if (rssi) {
- prop->type = HAL_PROP_DEVICE_RSSI;
- prop->len = sizeof(rssi);
- memcpy(prop->val, &rssi, prop->len);
- prop = ((void *) prop) + sizeof(*prop) + sizeof(rssi);
- num_props++;
- }
+static int fill_hal_prop(void *buf, uint8_t type, uint16_t len,
+ const void *val)
+{
+ struct hal_property *prop = buf;
- /* fill name */
- if (name) {
- prop->type = HAL_PROP_DEVICE_NAME;
- prop->len = strlen(name);
- memcpy(prop->val, name, prop->len);
- prop = ((void *) prop) + sizeof(*prop) + prop->len;
- num_props++;
- }
+ prop->type = type;
+ prop->len = len;
+ memcpy(prop->val, val, len);
- return num_props;
+ return sizeof(*prop) + len;
}
static void update_found_device(const bdaddr_t *bdaddr, uint8_t bdaddr_type,
int8_t rssi, bool confirm,
const uint8_t *data, uint8_t data_len)
{
- bool is_new_dev = false;
- size_t props_size = 0;
- size_t buff_size = 0;
- void *buf;
+ uint8_t buf[BLUEZ_HAL_MTU];
+ bool new_dev = false;
struct eir_data eir;
- GSList *l;
- bdaddr_t *remote = NULL;
+ uint8_t *num_prop;
+ uint8_t opcode;
+ int size = 0;
int err;
+ memset(buf, 0, sizeof(buf));
memset(&eir, 0, sizeof(eir));
err = eir_parse(&eir, data, data_len);
@@ -830,75 +808,70 @@ static void update_found_device(const bdaddr_t *bdaddr, uint8_t bdaddr_type,
return;
}
- l = g_slist_find_custom(found_devices, bdaddr, bdaddr_cmp);
- if (l)
- remote = l->data;
-
- if (!remote) {
+ if (!g_slist_find_custom(found_devices, bdaddr, bdaddr_cmp)) {
+ bdaddr_t *new_bdaddr;
char addr[18];
- remote = g_new0(bdaddr_t, 1);
- bacpy(remote, bdaddr);
+ new_bdaddr = g_new0(bdaddr_t, 1);
+ bacpy(new_bdaddr, bdaddr);
- found_devices = g_slist_prepend(found_devices, remote);
- is_new_dev = true;
+ found_devices = g_slist_prepend(found_devices, new_bdaddr);
- ba2str(remote, addr);
+ ba2str(new_bdaddr, addr);
DBG("New device found: %s", addr);
- }
- props_size += sizeof(struct hal_property) + sizeof(eir.class);
- props_size += sizeof(struct hal_property) + sizeof(rssi);
-
- if (eir.name) {
- props_size += sizeof(struct hal_property) + strlen(eir.name);
- cache_device_name(remote, eir.name);
+ new_dev = true;
}
- if (is_new_dev) {
- struct hal_ev_device_found *ev = NULL;
- struct hal_property *prop = NULL;
-
- /* with new device we also send bdaddr prop */
- props_size += sizeof(struct hal_property) + sizeof(eir.addr);
+ if (new_dev) {
+ struct hal_ev_device_found *ev = (void *) buf;
+ bdaddr_t android_bdaddr;
- buff_size = sizeof(struct hal_ev_device_found) + props_size;
- buf = g_new0(char, buff_size);
- ev = buf;
- prop = ev->props;
+ size += sizeof(*ev);
- /* fill first prop with bdaddr */
- prop->type = HAL_PROP_DEVICE_ADDR;
- prop->len = sizeof(bdaddr_t);
- bdaddr2android(bdaddr, prop->val);
- prop = ((void *) prop) + sizeof(*prop) + sizeof(bdaddr_t);
- ev->num_props += 1;
+ num_prop = &ev->num_props;
+ opcode = HAL_EV_DEVICE_FOUND;
- /* fill eir, name, and cod props */
- ev->num_props += fill_device_props(prop, remote, eir.class,
- rssi, eir.name);
+ bdaddr2android(bdaddr, &android_bdaddr);
- ipc_send(notification_sk, HAL_SERVICE_ID_BLUETOOTH,
- HAL_EV_DEVICE_FOUND, buff_size, ev, -1);
- g_free(buf);
+ size += fill_hal_prop(buf + size, HAL_PROP_DEVICE_ADDR,
+ sizeof(android_bdaddr), &android_bdaddr);
+ (*num_prop)++;
} else {
- struct hal_ev_remote_device_props *ev = NULL;
+ struct hal_ev_remote_device_props *ev = (void *) buf;
- buff_size = sizeof(*ev) + props_size;
- buf = g_new0(char, buff_size);
- ev = buf;
+ size += sizeof(*ev);
- ev->num_props = fill_device_props(ev->props, remote, eir.class,
- rssi, eir.name);
+ num_prop = &ev->num_props;
+ opcode = HAL_EV_REMOTE_DEVICE_PROPS;
ev->status = HAL_STATUS_SUCCESS;
bdaddr2android(bdaddr, ev->bdaddr);
+ }
+
+ if (eir.class) {
+ size += fill_hal_prop(buf + size, HAL_PROP_DEVICE_CLASS,
+ sizeof(eir.class), &eir.class);
+ (*num_prop)++;
+ }
- ipc_send(notification_sk, HAL_SERVICE_ID_BLUETOOTH,
- HAL_EV_REMOTE_DEVICE_PROPS, buff_size, ev, -1);
- g_free(buf);
+ if (rssi) {
+ size += fill_hal_prop(buf + size, HAL_PROP_DEVICE_RSSI,
+ sizeof(rssi), &rssi);
+ (*num_prop)++;
+ }
+
+ if (eir.name) {
+ cache_device_name(bdaddr, eir.name);
+
+ size += fill_hal_prop(buf + size, HAL_PROP_DEVICE_NAME,
+ strlen(eir.name), eir.name);
+ (*num_prop)++;
}
+ ipc_send(notification_sk, HAL_SERVICE_ID_BLUETOOTH, opcode, size, buf,
+ -1);
+
if (confirm) {
char addr[18];
--
1.8.4.3
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