Added BLE v2 peripheral

PiperOrigin-RevId: 509962831

internal/platform/implementation/windows/ble_v2_peripheral.cc

@@ -0,0 +1,57 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "internal/platform/implementation/windows/ble_v2_peripheral.h"
+
+#include <string>
+
+#include "absl/strings/string_view.h"
+#include "internal/platform/logging.h"
+
+namespace nearby {
+namespace windows {
+namespace {
+constexpr int kMacAddressLength = 17;
+}
+
+bool BleV2Peripheral::SetAddress(absl::string_view address) {
+  // The address must be in format "00:B0:D0:63:C2:26".
+  if (address.size() != kMacAddressLength) {
+    NEARBY_LOGS(ERROR) << ": Invalid MAC address length.";
+    return false;
+  }
+
+  for (int i = 0; i < kMacAddressLength; ++i) {
+    if ((i % 3) == 0 || (i % 3) == 1) {
+      if ((address[i] >= '0' && address[i] <= '9') ||
+          (address[i] >= 'a' && address[i] <= 'f') ||
+          (address[i] >= 'A' && address[i] <= 'F')) {
+        continue;
+      }
+    } else {
+      if (address[i] == ':') {
+        continue;
+      }
+    }
+
+    NEARBY_LOGS(ERROR) << ": Invalid MAC address format.";
+    return false;
+  }
+
+  address_ = std::string(address);
+  return true;
+}
+
+}  // namespace windows
+}  // namespace nearby