eth_rlp.h File Reference

Minimal RLP encoder for EIP-1559 (type 2) Ethereum transactions. More...

#include <stdint.h>
#include <stddef.h>

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Classes
struct	eth_tx_t
	EIP-1559 (type 2) transaction parameters. More...

Functions
size_t	eth_rlp_encode_unsigned (const eth_tx_t *tx, uint8_t *out, size_t out_max)
	Encode an unsigned EIP-1559 transaction: 0x02 || RLP([chainId, nonce, ...]).
size_t	eth_rlp_encode_signed (const eth_tx_t *tx, uint8_t v, const uint8_t r[32], const uint8_t s[32], uint8_t *out, size_t out_max)
	Encode a signed EIP-1559 transaction: 0x02 || RLP([..., v, r, s]).

Detailed Description

Minimal RLP encoder for EIP-1559 (type 2) Ethereum transactions.

Definition in file eth_rlp.h.

Function Documentation

eth_rlp_encode_signed()

size_t eth_rlp_encode_signed	(	const eth_tx_t *	tx,
		uint8_t	v,
		const uint8_t	r[32],
		const uint8_t	s[32],
		uint8_t *	out,
		size_t	out_max )

Encode a signed EIP-1559 transaction: 0x02 || RLP([..., v, r, s]).

Parameters

[in]	tx	Transaction parameters.
[in]	v	Signature parity bit; must be 0 or 1.
[in]	r	32-byte big-endian ECDSA r component.
[in]	s	32-byte big-endian ECDSA s component.
[out]	out	Output buffer for the encoded bytes.
[in]	out_max	Capacity of out.

Returns

Total bytes written, or 0 if the output would overflow out_max or tx->calldata_len exceeds the internal scratch bound.

Definition at line 268 of file eth_rlp.cpp.

References encode_common_fields(), ITEMS_BUF_MAX, rlp_int256(), rlp_list_header(), and rlp_uint64().

Referenced by sign_and_broadcast().

eth_rlp_encode_unsigned()

size_t eth_rlp_encode_unsigned	(	const eth_tx_t *	tx,
		uint8_t *	out,
		size_t	out_max )

Encode an unsigned EIP-1559 transaction: 0x02 || RLP([chainId, nonce, ...]).

Parameters

[in]	tx	Transaction parameters.
[out]	out	Output buffer for the encoded bytes.
[in]	out_max	Capacity of out.

Returns

Total bytes written, or 0 if the output would overflow out_max or tx->calldata_len exceeds the internal scratch bound.

Definition at line 244 of file eth_rlp.cpp.

References encode_common_fields(), ITEMS_BUF_MAX, and rlp_list_header().

Referenced by sign_and_broadcast().