android/bluetooth: Add support for get remote service record property cmd

This allows to get service record property by uuid of specified remote device.

android/bluetooth.c

@@ -38,6 +38,7 @@
 #include "lib/bluetooth.h"
 #include "lib/sdp.h"
 #include "lib/mgmt.h"
+#include "lib/uuid.h"
 #include "src/shared/util.h"
 #include "src/shared/mgmt.h"
 #include "src/eir.h"
@@ -1067,6 +1068,134 @@ static uint8_t browse_remote_sdp(const bdaddr_t *addr)
 	return HAL_STATUS_SUCCESS;
 }
 
+static void send_remote_sdp_rec_notify(bt_uuid_t *uuid, int channel,
+					char *name, uint8_t name_len,
+					uint8_t status, bdaddr_t *bdaddr)
+{
+	struct hal_prop_device_service_rec *prop;
+	uint8_t buf[BASELEN_REMOTE_DEV_PROP + name_len + sizeof(*prop)];
+	struct hal_ev_remote_device_props *ev = (void *) buf;
+	int prop_len = sizeof(*prop) + name_len;
+
+	memset(buf, 0, sizeof(buf));
+
+	if (uuid && status == HAL_STATUS_SUCCESS) {
+		prop = (void *) &ev->props[0].val;
+		prop->name_len = name_len;
+		prop->channel = (uint16_t)channel;
+		memcpy(prop->name, name, name_len);
+		memcpy(prop->uuid, &uuid->value.u128, sizeof(prop->uuid));
+	}
+
+	ev->num_props = 1;
+	ev->status = status;
+	ev->props[0].len = prop_len;
+	bdaddr2android(bdaddr, ev->bdaddr);
+	ev->props[0].type = HAL_PROP_DEVICE_SERVICE_REC;
+
+	ipc_send_notif(hal_ipc, HAL_SERVICE_ID_BLUETOOTH,
+						HAL_EV_REMOTE_DEVICE_PROPS,
+						sizeof(buf), buf);
+}
+
+static void find_remote_sdp_rec_cb(sdp_list_t *recs, int err,
+							gpointer user_data)
+{
+	uint8_t name_len;
+	uint8_t status;
+	char name_buf[256];
+	int channel;
+	bdaddr_t *addr = user_data;
+	bt_uuid_t uuid;
+	uuid_t uuid128_sdp;
+	sdp_list_t *protos;
+	sdp_record_t *sdp_rec;
+
+	if (err < 0) {
+		error("error while search remote sdp records");
+		status = HAL_STATUS_FAILED;
+		send_remote_sdp_rec_notify(NULL, 0, NULL, 0, status, addr);
+		goto done;
+	}
+
+	if (!recs) {
+		info("No service records found on remote");
+		status = HAL_STATUS_SUCCESS;
+		send_remote_sdp_rec_notify(NULL, 0, NULL, 0, status, addr);
+		goto done;
+	}
+
+	for ( ; recs; recs = recs->next) {
+		sdp_rec = recs->data;
+
+		switch (sdp_rec->svclass.type) {
+		case SDP_UUID16:
+			sdp_uuid16_to_uuid128(&uuid128_sdp,
+							&sdp_rec->svclass);
+			break;
+		case SDP_UUID32:
+			sdp_uuid32_to_uuid128(&uuid128_sdp,
+							&sdp_rec->svclass);
+			break;
+		case SDP_UUID128:
+			break;
+		default:
+			error("wrong sdp uuid type");
+			goto done;
+		}
+
+		if (!sdp_get_access_protos(sdp_rec, &protos))
+			channel = sdp_get_proto_port(protos, L2CAP_UUID);
+		else
+			channel = -1;
+
+		if (channel < 0) {
+			error("can't get channel for sdp record");
+			channel = 0;
+		}
+
+		if (!sdp_get_service_name(sdp_rec, name_buf, sizeof(name_buf)))
+			name_len = strlen(name_buf);
+		else
+			name_len = 0;
+
+		uuid.type = BT_UUID128;
+		memcpy(&uuid.value.u128, uuid128_sdp.value.uuid128.data,
+						sizeof(uuid.value.u128));
+		status = HAL_STATUS_SUCCESS;
+
+		send_remote_sdp_rec_notify(&uuid, channel, name_buf, name_len,
+								status, addr);
+	}
+
+done:
+	g_free(addr);
+}
+
+static uint8_t find_remote_sdp_rec(const bdaddr_t *addr,
+						const uint8_t *find_uuid)
+{
+	uuid_t uuid;
+	bdaddr_t *bdaddr;
+
+	/* from android we always get full 128bit length uuid */
+	sdp_uuid128_create(&uuid, find_uuid);
+
+	bdaddr = g_malloc(sizeof(*bdaddr));
+	if (!bdaddr)
+		return HAL_STATUS_NOMEM;
+
+	memcpy(bdaddr, addr, sizeof(*bdaddr));
+
+	if (bt_search_service(&adapter.bdaddr, addr, &uuid,
+				find_remote_sdp_rec_cb, bdaddr, NULL, 0) < 0) {
+		g_free(bdaddr);
+		return HAL_STATUS_FAILED;
+	}
+
+	return HAL_STATUS_SUCCESS;
+}
+
 static void new_link_key_callback(uint16_t index, uint16_t length,
 					const void *param, void *user_data)
 {
@@ -4746,12 +4875,16 @@ failed:
 
 static void handle_get_remote_service_rec_cmd(const void *buf, uint16_t len)
 {
-	/* TODO */
+	const struct hal_cmd_get_remote_service_rec *cmd = buf;
+	uint8_t status;
+	bdaddr_t addr;
 
-	error("get_remote_service_record not supported");
+	android2bdaddr(&cmd->bdaddr, &addr);
+
+	status = find_remote_sdp_rec(&addr, cmd->uuid);
 
 	ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_BLUETOOTH,
-			HAL_OP_GET_REMOTE_SERVICE_REC, HAL_STATUS_FAILED);
+					HAL_OP_GET_REMOTE_SERVICE_REC, status);
 }
 
 static void handle_start_discovery_cmd(const void *buf, uint16_t len)