diff options
| author | german77 <juangerman-13@hotmail.com> | 2021-09-20 16:57:55 -0500 |
|---|---|---|
| committer | Narr the Reg <juangerman-13@hotmail.com> | 2021-11-24 20:30:22 -0600 |
| commit | 4c6f2c2547e1d97f12ebe708fac693a6183bbc45 (patch) | |
| tree | 0abcd35f56088bbf732a92838995a465bae0f0ee /src/input_common/udp/protocol.cpp | |
| parent | 854c933716f0f5e1dbf62157c5a76e65213b30b2 (diff) | |
input_common: Move touch and analog from button. Move udp protocol
Diffstat (limited to 'src/input_common/udp/protocol.cpp')
| -rw-r--r-- | src/input_common/udp/protocol.cpp | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/src/input_common/udp/protocol.cpp b/src/input_common/udp/protocol.cpp deleted file mode 100644 index 5e50bd6129..0000000000 --- a/src/input_common/udp/protocol.cpp +++ /dev/null @@ -1,78 +0,0 @@ -// Copyright 2018 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <cstddef> -#include <cstring> -#include "common/logging/log.h" -#include "input_common/udp/protocol.h" - -namespace InputCommon::CemuhookUDP { - -static constexpr std::size_t GetSizeOfResponseType(Type t) { - switch (t) { - case Type::Version: - return sizeof(Response::Version); - case Type::PortInfo: - return sizeof(Response::PortInfo); - case Type::PadData: - return sizeof(Response::PadData); - } - return 0; -} - -namespace Response { - -/** - * Returns Type if the packet is valid, else none - * - * Note: Modifies the buffer to zero out the crc (since thats the easiest way to check without - * copying the buffer) - */ -std::optional<Type> Validate(u8* data, std::size_t size) { - if (size < sizeof(Header)) { - return std::nullopt; - } - Header header{}; - std::memcpy(&header, data, sizeof(Header)); - if (header.magic != SERVER_MAGIC) { - LOG_ERROR(Input, "UDP Packet has an unexpected magic value"); - return std::nullopt; - } - if (header.protocol_version != PROTOCOL_VERSION) { - LOG_ERROR(Input, "UDP Packet protocol mismatch"); - return std::nullopt; - } - if (header.type < Type::Version || header.type > Type::PadData) { - LOG_ERROR(Input, "UDP Packet is an unknown type"); - return std::nullopt; - } - - // Packet size must equal sizeof(Header) + sizeof(Data) - // and also verify that the packet info mentions the correct size. Since the spec includes the - // type of the packet as part of the data, we need to include it in size calculations here - // ie: payload_length == sizeof(T) + sizeof(Type) - const std::size_t data_len = GetSizeOfResponseType(header.type); - if (header.payload_length != data_len + sizeof(Type) || size < data_len + sizeof(Header)) { - LOG_ERROR( - Input, - "UDP Packet payload length doesn't match. Received: {} PayloadLength: {} Expected: {}", - size, header.payload_length, data_len + sizeof(Type)); - return std::nullopt; - } - - const u32 crc32 = header.crc; - boost::crc_32_type result; - // zero out the crc in the buffer and then run the crc against it - std::memset(&data[offsetof(Header, crc)], 0, sizeof(u32_le)); - - result.process_bytes(data, data_len + sizeof(Header)); - if (crc32 != result.checksum()) { - LOG_ERROR(Input, "UDP Packet CRC check failed. Offset: {}", offsetof(Header, crc)); - return std::nullopt; - } - return header.type; -} -} // namespace Response - -} // namespace InputCommon::CemuhookUDP |