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trezor-firmware/legacy/firmware/stellar.h
2019-06-17 20:28:29 +02:00

117 lines
4.7 KiB
C

/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (C) 2018 ZuluCrypto <zulucrypto@protonmail.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __STELLAR_H__
#define __STELLAR_H__
#include <stdbool.h>
#include "base32.h"
#include "bip32.h"
#include "crypto.h"
#include "fsm.h"
#include "messages.pb.h"
// 56 character base-32 encoded string
#define STELLAR_ADDRESS_SIZE 56
// Decodes to 35 bytes
#define STELLAR_ADDRESS_SIZE_RAW 35
// Raw key size is 32 bytes
#define STELLAR_KEY_SIZE 32
typedef struct {
// BIP32 path to the address being used for signing
uint32_t address_n[10];
size_t address_n_count;
uint8_t signing_pubkey[32];
// 1 - public network, 2 - official testnet, 3 - other private network
uint8_t network_type;
// Total number of operations expected
uint32_t num_operations;
// Number that have been confirmed by the user
uint32_t confirmed_operations;
// sha256 context that will eventually be signed
SHA256_CTX sha256_ctx;
} StellarTransaction;
// Signing process
bool stellar_signingInit(const StellarSignTx *tx);
void stellar_signingAbort(const char *reason);
bool stellar_confirmSourceAccount(bool has_source_account,
const char *str_account);
bool stellar_confirmCreateAccountOp(const StellarCreateAccountOp *msg);
bool stellar_confirmPaymentOp(const StellarPaymentOp *msg);
bool stellar_confirmPathPaymentOp(const StellarPathPaymentOp *msg);
bool stellar_confirmManageOfferOp(const StellarManageOfferOp *msg);
bool stellar_confirmCreatePassiveOfferOp(
const StellarCreatePassiveOfferOp *msg);
bool stellar_confirmSetOptionsOp(const StellarSetOptionsOp *msg);
bool stellar_confirmChangeTrustOp(const StellarChangeTrustOp *msg);
bool stellar_confirmAllowTrustOp(const StellarAllowTrustOp *msg);
bool stellar_confirmAccountMergeOp(const StellarAccountMergeOp *msg);
bool stellar_confirmManageDataOp(const StellarManageDataOp *msg);
bool stellar_confirmBumpSequenceOp(const StellarBumpSequenceOp *msg);
// Layout
void stellar_layoutTransactionDialog(const char *line1, const char *line2,
const char *line3, const char *line4,
const char *line5);
void stellar_layoutTransactionSummary(const StellarSignTx *msg);
void stellar_layoutSigningDialog(const char *line1, const char *line2,
const char *line3, const char *line4,
const char *line5, uint32_t *address_n,
size_t address_n_count, const char *warning,
bool is_final_step);
// Helpers
const HDNode *stellar_deriveNode(const uint32_t *address_n,
size_t address_n_count);
size_t stellar_publicAddressAsStr(const uint8_t *bytes, char *out,
size_t outlen);
const char **stellar_lineBreakAddress(const uint8_t *addrbytes);
void stellar_hashupdate_uint32(uint32_t value);
void stellar_hashupdate_uint64(uint64_t value);
void stellar_hashupdate_bool(bool value);
void stellar_hashupdate_string(const uint8_t *data, size_t len);
void stellar_hashupdate_address(const uint8_t *address_bytes);
void stellar_hashupdate_asset(const StellarAssetType *asset);
void stellar_hashupdate_bytes(const uint8_t *data, size_t len);
void stellar_fillSignedTx(StellarSignedTx *resp);
bool stellar_allOperationsConfirmed(void);
void stellar_getSignatureForActiveTx(uint8_t *out_signature);
void stellar_format_uint32(uint32_t number, char *out, size_t outlen);
void stellar_format_uint64(uint64_t number, char *out, size_t outlen);
void stellar_format_stroops(uint64_t number, char *out, size_t outlen);
void stellar_format_asset(const StellarAssetType *asset, char *str_formatted,
size_t len);
void stellar_format_price(uint32_t numerator, uint32_t denominator, char *out,
size_t outlen);
bool stellar_validateAddress(const char *str_address);
bool stellar_getAddressBytes(const char *str_address, uint8_t *out_bytes);
uint16_t stellar_crc16(uint8_t *bytes, uint32_t length);
#endif