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Implemented gatt discovery and setting gatt characteristics

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This commit is contained in:
kidfromjupiter
2026-01-14 13:17:13 +00:00
parent 4c3656b160
commit a61607360c
11 changed files with 708 additions and 40 deletions
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internal/platform/implementation/linux/ble_v2_medium.cc
+61 -7
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@@ -18,6 +18,8 @@
#include <cerrno>
#include <cstring>
#include <bluetooth/bluetooth.h>
#include <bluetooth/l2cap.h>
#include <sys/socket.h>
#include <unistd.h>
#include <sdbus-c++/IProxy.h>
@@ -29,11 +31,16 @@
// #include "internal/platform/implementation/linux/ble_gatt_server.h"
#include "internal/platform/implementation/linux/ble_v2_medium.h"
#include "ble_gatt_client.h"
#include "ble_gatt_server.h"
#include "ble_l2cap_server_socket.h"
#include "ble_l2cap_socket.h"
#include "bluez_le_bearer_client.h"
#include "internal/platform/implementation/linux/bluetooth_classic_device.h"
#include "internal/platform/implementation/linux/bluetooth_devices.h"
#include "internal/platform/implementation/linux/bluez.h"
#include "internal/platform/mac_address.h"
#include "internal/platform/prng.h"
#include "absl/types/span.h"
#include "internal/platform/implementation/linux/bluez_advertisement_monitor.h"
#include "internal/platform/implementation/linux/bluez_advertisement_monitor_manager.h"
@@ -219,6 +226,7 @@ BleV2Medium::StartAdvertising(
std::unique_ptr<api::ble_v2::GattServer> BleV2Medium::StartGattServer(
api::ble_v2::ServerGattConnectionCallback callback) {
(void)callback;
return nullptr;
return std::make_unique<GattServer>(
*system_bus_, adapter_, devices_,std::move(callback)
@@ -236,13 +244,12 @@ std::unique_ptr<api::ble_v2::GattClient> BleV2Medium::ConnectToGattServer(
<< ": GATT client connection is not supported on Linux yet.";
return nullptr;
}
// This is supposed to be for a socket on top of Weave protocol.
std::unique_ptr<api::ble_v2::BleSocket> BleV2Medium::Connect(
const std::string &service_id, api::ble_v2::TxPowerLevel tx_power_level,
api::ble_v2::BlePeripheral::UniqueId peripheral_id,
CancellationFlag *cancellation_flag) {
auto device = devices_ -> get_device_by_unique_id(peripheral_id);
LOG(INFO) << __func__ << ": Resolved device with address " << device -> GetMacAddress();
LOG(INFO) << __func__ << ": Not implemented on linux ";
return nullptr;
}
@@ -498,8 +505,16 @@ std::unique_ptr<api::ble_v2::BleServerSocket> BleV2Medium::OpenServerSocket(
std::unique_ptr<api::ble_v2::BleL2capServerSocket>
BleV2Medium::OpenL2capServerSocket(const std::string &service_id) {
LOG(WARNING) << __func__ << ": L2CAP server sockets not implemented on Linux";
return nullptr;
LOG(INFO) << __func__ << ": Opening L2CAP server socket for service "
<< service_id;
Prng prng;
auto psm = 0x80 + (prng.NextUint32() % 0x80);
auto server_socket = std::make_unique<linux::BleL2capServerSocket>(psm);
LOG(INFO) << __func__ << ": L2CAP server socket created with PSM: "
<< server_socket->GetPSM();
return server_socket;
}
// std::unique_ptr<api::ble_v2::BleSocket> BleV2Medium::Connect(
@@ -515,8 +530,47 @@ std::unique_ptr<api::ble_v2::BleL2capSocket> BleV2Medium::ConnectOverL2cap(
api::ble_v2::TxPowerLevel tx_power_level,
api::ble_v2::BlePeripheral::UniqueId peripheral_id,
CancellationFlag *cancellation_flag) {
LOG(WARNING) << __func__ << ": L2CAP socket connections not implemented on Linux";
return nullptr;
auto device = devices_->get_device_by_unique_id(peripheral_id);
if (!device) {
LOG(ERROR) << __func__ << ": Failed to find device with unique ID "
<< peripheral_id;
return nullptr;
}
LOG(INFO) << __func__ << ": Connecting to L2CAP PSM " << psm
<< " on device " << device->GetMacAddress();
int fd = socket(AF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP);
if (fd < 0) {
LOG(ERROR) << __func__ << ": Failed to create L2CAP socket: "
<< std::strerror(errno);
return nullptr;
}
struct sockaddr_l2 addr;
std::memset(&addr, 0, sizeof(addr));
addr.l2_family = AF_BLUETOOTH;
addr.l2_psm = htobs(psm);
addr.l2_cid = 0;
addr.l2_bdaddr_type = BDADDR_LE_PUBLIC;
std::string mac_addr = device->GetMacAddress();
if (str2ba(mac_addr.c_str(), &addr.l2_bdaddr) < 0) {
LOG(ERROR) << __func__ << ": Invalid Bluetooth address: " << mac_addr;
close(fd);
return nullptr;
}
if (connect(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
LOG(ERROR) << __func__ << ": Failed to connect to L2CAP socket: "
<< std::strerror(errno);
close(fd);
return nullptr;
}
LOG(INFO) << __func__ << ": Successfully connected to L2CAP socket";
return std::make_unique<BleL2capSocket>(fd, peripheral_id);
}
bool BleV2Medium::StartMultipleServicesScanning(