Reassembles the fragments of a single handshake message into a contiguous body. More...

#include <dtls_handshake.h>

Public Attributes
proto_bool	active
	false until the first fragment of the target message is seen

proto_bool	have_len
	true once a fragment established the full message length

uint8_t	msg_type
	HandshakeType of the message being reassembled.

uint16_t	msg_seq
	the message sequence number this reassembler accepts

uint32_t	length
	full body length (from the first non-empty fragment)

uint8_t *	buf
	caller-provided body buffer (>= length bytes)

size_t	buf_cap
	capacity of buf

uint32_t	range_lo [PROTOCORE_DTLS_HS_REASM_MAX_RANGES]
	received interval starts

uint32_t	range_hi [PROTOCORE_DTLS_HS_REASM_MAX_RANGES]
	received interval ends (exclusive)

uint8_t	range_count
	number of active intervals

Detailed Description

Reassembles the fragments of a single handshake message into a contiguous body.

Fragments may arrive out of order, duplicated, or with overlapping ranges (RFC 9147 §5.4 requires an implementation to handle overlap). Received byte ranges are merged into a bounded interval list; the message is complete when a single interval covers [0, length).

Definition at line 79 of file dtls_handshake.h.

Member Data Documentation

◆ active

proto_bool DtlsHsReasm::active

false until the first fragment of the target message is seen

Definition at line 81 of file dtls_handshake.h.

◆ have_len

proto_bool DtlsHsReasm::have_len

true once a fragment established the full message length

Definition at line 82 of file dtls_handshake.h.

◆ msg_type

uint8_t DtlsHsReasm::msg_type

HandshakeType of the message being reassembled.

Definition at line 83 of file dtls_handshake.h.

◆ msg_seq

uint16_t DtlsHsReasm::msg_seq

the message sequence number this reassembler accepts

Definition at line 84 of file dtls_handshake.h.

◆ length

uint32_t DtlsHsReasm::length

full body length (from the first non-empty fragment)

Definition at line 85 of file dtls_handshake.h.

◆ buf

uint8_t* DtlsHsReasm::buf

caller-provided body buffer (>= length bytes)

Definition at line 86 of file dtls_handshake.h.

◆ buf_cap

size_t DtlsHsReasm::buf_cap

capacity of buf

Definition at line 87 of file dtls_handshake.h.

◆ range_lo

uint32_t DtlsHsReasm::range_lo[PROTOCORE_DTLS_HS_REASM_MAX_RANGES]

received interval starts

Definition at line 88 of file dtls_handshake.h.

◆ range_hi

uint32_t DtlsHsReasm::range_hi[PROTOCORE_DTLS_HS_REASM_MAX_RANGES]

received interval ends (exclusive)

Definition at line 89 of file dtls_handshake.h.

◆ range_count

uint8_t DtlsHsReasm::range_count

number of active intervals

Definition at line 90 of file dtls_handshake.h.

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

src/network_drivers/presentation/security/dtls/dtls_handshake/dtls_handshake.h

Public Attributes