1 // Copyright 2021 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_router/static_router.h" 16 17 #include <algorithm> 18 19 namespace pw::router { 20 RoutePacket(ConstByteSpan packet,PacketParser & parser)21Status StaticRouter::RoutePacket(ConstByteSpan packet, PacketParser& parser) { 22 if (!parser.Parse(packet)) { 23 parser_errors_.Increment(); 24 return Status::DataLoss(); 25 } 26 27 std::optional<uint32_t> maybe_address = parser.GetDestinationAddress(); 28 if (!maybe_address.has_value()) { 29 parser_errors_.Increment(); 30 return Status::DataLoss(); 31 } 32 33 auto route = std::find_if(routes_.begin(), routes_.end(), [&](auto r) { 34 return r.address == *maybe_address; 35 }); 36 if (route == routes_.end()) { 37 route_errors_.Increment(); 38 return Status::NotFound(); 39 } 40 41 if (Status status = route->egress.SendPacket(packet, parser); !status.ok()) { 42 egress_errors_.Increment(); 43 return Status::Unavailable(); 44 } 45 46 return OkStatus(); 47 } 48 49 } // namespace pw::router 50