protocol_version_packet_t Struct Reference

Protocol version negotiation packet structure (Packet Type 1) More...

#include <include/ascii-chat/network/packet/packet.h>

Data Fields
uint16_t	protocol_version
	Major protocol version (must match for compatibility)
uint16_t	protocol_revision
	Minor protocol revision (server can be newer)
uint8_t	supports_encryption
	Encryption & authentication mode bitmask (ACIP_CRYPTO_* constants: NONE, ENCRYPT, AUTH, or FULL)
uint8_t	compression_algorithms
	Supported compression algorithms bitmask (COMPRESS_ALGO_*)
uint8_t	compression_threshold
	Compression threshold percentage (0-100, e.g., 80 = compress if >80% size reduction)
uint16_t	feature_flags
	Feature flags bitmask (FEATURE_RLE_ENCODING, etc.)
uint8_t	reserved [7]
	Reserved bytes for future expansion (must be zero)

Detailed Description

Protocol version negotiation packet structure (Packet Type 1)

Initial handshake packet sent by both client and server to negotiate protocol capabilities, version, compression, and optional features.

Note

This is the first packet exchanged in every connection.

Structure is 16 bytes total (packed).

Definition at line 818 of file packet.h.

Field Documentation

compression_algorithms

uint8_t protocol_version_packet_t::compression_algorithms

Supported compression algorithms bitmask (COMPRESS_ALGO_*)

Definition at line 826 of file packet.h.

Referenced by client_crypto_handshake(), discovery_session_process(), discovery_session_start(), handle_protocol_version_packet(), and server_crypto_handshake().

compression_threshold

uint8_t protocol_version_packet_t::compression_threshold

Compression threshold percentage (0-100, e.g., 80 = compress if >80% size reduction)

Definition at line 828 of file packet.h.

Referenced by client_crypto_handshake(), discovery_session_process(), discovery_session_start(), and server_crypto_handshake().

feature_flags

uint16_t protocol_version_packet_t::feature_flags

Feature flags bitmask (FEATURE_RLE_ENCODING, etc.)

Definition at line 830 of file packet.h.

Referenced by client_crypto_handshake(), discovery_session_process(), discovery_session_start(), handle_protocol_version_packet(), and server_crypto_handshake().

protocol_revision

uint16_t protocol_version_packet_t::protocol_revision

Minor protocol revision (server can be newer)

Definition at line 822 of file packet.h.

Referenced by client_crypto_handshake(), discovery_session_process(), discovery_session_start(), handle_protocol_version_packet(), and server_crypto_handshake().

protocol_version

uint16_t protocol_version_packet_t::protocol_version

Major protocol version (must match for compatibility)

Definition at line 820 of file packet.h.

Referenced by client_crypto_handshake(), discovery_session_process(), discovery_session_start(), handle_protocol_version_packet(), and server_crypto_handshake().

reserved

uint8_t protocol_version_packet_t::reserved[7]

Reserved bytes for future expansion (must be zero)

Definition at line 832 of file packet.h.

Referenced by handle_protocol_version_packet().

supports_encryption

uint8_t protocol_version_packet_t::supports_encryption

Encryption & authentication mode bitmask (ACIP_CRYPTO_* constants: NONE, ENCRYPT, AUTH, or FULL)

Definition at line 824 of file packet.h.

Referenced by client_crypto_handshake(), discovery_session_process(), discovery_session_start(), handle_protocol_version_packet(), and server_crypto_handshake().

---

The documentation for this struct was generated from the following file:

• packet.h