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support full 32bit chain_id #385

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support full 32bit chain_id #385

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5 changes: 1 addition & 4 deletions firmware/ethereum.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,9 +36,6 @@
#include "memzero.h"
#include "messages.pb.h"

/* maximum supported chain id. v must fit in an uint32_t. */
#define MAX_CHAIN_ID 2147483630

static bool ethereum_signing = false;
static uint32_t data_total, data_left;
static EthereumTxRequest msg_tx_request;
Expand Down Expand Up @@ -461,7 +458,7 @@ void ethereum_signing_init(EthereumSignTx *msg, const HDNode *node)

/* eip-155 chain id */
if (msg->has_chain_id) {
if (msg->chain_id < 1 || msg->chain_id > MAX_CHAIN_ID) {
if (msg->chain_id < 1) {
fsm_sendFailure(Failure_FailureType_Failure_DataError, _("Chain Id out of bounds"));
ethereum_signing_abort();
return;
Expand Down