1 // Copyright 2023 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 #include "pw_bluetooth_sapphire/internal/host/common/identifier.h" 16 17 #include "pw_bluetooth_sapphire/internal/host/common/random.h" 18 19 namespace bt { 20 RandomPeerId()21PeerId RandomPeerId() { 22 PeerId id = kInvalidPeerId; 23 while (id == kInvalidPeerId) { 24 // TODO(fxbug.dev/42083954): zx_cprng_draw() current guarantees this random 25 // ID to be unique and that there will be no collisions. Re-consider where 26 // this address is generated and whether we need to provide unique-ness 27 // guarantees beyond device scope. 28 id = PeerId(Random<uint64_t>()); 29 } 30 return id; 31 } 32 33 } // namespace bt 34