Add setters and tests for WireGuard protocol message fields

[nadongjun]

Reference

• Add WireGuard Packet Parsing Support #1554
• Add WireGuard protocol support #1557
• WireGuard Protocol

Summary:

This PR introduces setter methods and corresponding tests for WireGuard message fields. These changes allow for easier modification of message attributes such as the reserved field, sender index, and encrypted data.

What's Changed:

Added setter methods for various fields in WireGuard message structures, including Handshake Initiation, Handshake Response, Cookie Reply, and Transport Data.

WireGuardLayer

void setReserved(const std::array<uint8_t, 3>& reserved);

WireGuardHandshakeInitiationLayer

void setSenderIndex(uint32_t senderIndex);
void setInitiatorEphemeral(const std::array<uint8_t, 32>& initiatorEphemeral);
void setEncryptedInitiatorStatic(const std::array<uint8_t, 48>& encryptedInitiatorStatic);
void setEncryptedTimestamp(const std::array<uint8_t, 28>& encryptedTimestamp);
void setMac1(const std::array<uint8_t, 16>& mac1);
void setMac2(const std::array<uint8_t, 16>& mac2);

WireGuardHandshakeResponseLayer

void setSenderIndex(uint32_t senderIndex);
void setReceiverIndex(uint32_t receiverIndex);
void setResponderEphemeral(const std::array<uint8_t, 32>& responderEphemeral);
void setEncryptedEmpty(const std::array<uint8_t, 16>& encryptedEmpty);
void setMac1(const std::array<uint8_t, 16>& mac1);
void setMac2(const std::array<uint8_t, 16>& mac2);

WireGuardCookieReplyLayer

void setReceiverIndex(uint32_t receiverIndex);
void setNonce(const std::array<uint8_t, 24>& nonce);
void setEncryptedCookie(const std::array<uint8_t, 32>& encryptedCookie);

WireGuardTransportDataLayer

void setReceiverIndex(uint32_t receiverIndex);
void setCounter(uint64_t counter);
void setEncryptedData(const uint8_t* encryptedData, size_t encryptedDataLen);

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.11%. Comparing base (742bc3f) to head (9ec80f1).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1601      +/-   ##
==========================================
+ Coverage   83.04%   83.11%   +0.06%     
==========================================
  Files         276      276              
  Lines       46716    46907     +191     
  Branches     9329     9340      +11     
==========================================
+ Hits        38797    38988     +191     
- Misses       7060     7062       +2     
+ Partials      859      857       -2     

Flag	Coverage Δ
fedora40	74.67% <100.00%> (+0.11%)	⬆️
macos-12	81.10% <100.00%> (+0.07%)	⬆️
macos-13	80.53% <100.00%> (+0.07%)	⬆️
macos-14	80.45% <100.00%> (+0.07%)	⬆️
mingw32	70.61% <100.00%> (+0.12%)	⬆️
mingw64	70.57% <100.00%> (+0.14%)	⬆️
npcap	84.93% <100.00%> (-0.03%)	⬇️
rhel94	74.56% <100.00%> (+0.10%)	⬆️
ubuntu2004	57.96% <100.00%> (+0.03%)	⬆️
ubuntu2004-zstd	58.05% <100.00%> (+0.01%)	⬆️
ubuntu2204	74.49% <100.00%> (+0.11%)	⬆️
ubuntu2204-icpx	58.70% <100.00%> (+0.12%)	⬆️
ubuntu2404	74.74% <100.00%> (+0.11%)	⬆️
unittest	83.11% <100.00%> (+0.06%)	⬆️
windows-2019	85.04% <100.00%> (+0.04%)	⬆️
windows-2022	85.05% <100.00%> (+0.04%)	⬆️
winpcap	85.03% <100.00%> (+0.05%)	⬆️
xdp	49.65% <100.00%> (+0.21%)	⬆️

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