| 1 | // Copyright (C) Microsoft Corporation. All rights reserved. |
| 2 | #include "NetlinkChannel.h" |
| 3 | #include "NetlinkTransaction.h" |
| 4 | #include "NetlinkTransactionError.h" |
| 5 | |
| 6 | NetlinkTransaction::NetlinkTransaction(NetlinkChannel& channel, std::vector<char>&& request, __u32 seq) : |
| 7 | m_channel(channel), m_request(std::move(request)), m_seq(seq) |
| 8 | { |
| 9 | } |
| 10 | |
| 11 | void NetlinkTransaction::Execute(const std::function<void(const NetlinkResponse&)>& routine) |
| 12 | { |
| 13 | m_channel.SendMessage(m_request); |
| 14 | |
| 15 | std::vector<NetlinkResponse> responses; |
| 16 | |
| 17 | try |
| 18 | { |
| 19 | do |
| 20 | { |
| 21 | NetlinkResponse response = m_channel.ReceiveNetlinkResponse(); |
| 22 | if (response.Sequence() != m_seq) |
| 23 | { |
| 24 | response.ThrowIfErrorFound(); |
| 25 | continue; |
| 26 | } |
| 27 | responses.emplace_back(std::move(response)); |
| 28 | responses.back().ThrowIfErrorFound(); |
| 29 | |
| 30 | routine(responses.back()); |
| 31 | } while (responses.empty() || (responses.back().MultiMessage() && !responses.back().Done())); |
| 32 | } |
| 33 | catch (const std::exception& e) |
| 34 | { |
| 35 | throw NetlinkTransactionError(m_request, responses, e); |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | void NetlinkTransaction::PrintRequest() const |
| 40 | { |
| 41 | throw NetlinkTransactionError(m_request, {}, RuntimeErrorWithSourceLocation("Print netlink transaction request")); |
| 42 | } |
| 43 | |
| 44 | std::string NetlinkTransaction::GetRawRequestString() const |
| 45 | { |
| 46 | std::stringstream str; |
| 47 | utils::FormatBinary(str, m_request.data(), m_request.size()); |
| 48 | return str.str(); |
| 49 | } |