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618 lines
16 KiB
618 lines
16 KiB
/**
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* Copyright (c) 2017 Saleem Rashid
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, E1PRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "nem.h"
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#include <string.h>
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#include "base32.h"
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#include "ed25519-keccak.h"
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#include "macros.h"
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#include "ripemd160.h"
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#include "sha3.h"
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const char *nem_network_name(uint8_t network) {
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switch (network) {
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case NEM_NETWORK_MAINNET:
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return "NEM Mainnet";
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case NEM_NETWORK_TESTNET:
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return "NEM Testnet";
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case NEM_NETWORK_MIJIN:
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return "Mijin";
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default:
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return NULL;
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}
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}
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static inline void nem_write_u32(nem_transaction_ctx *ctx, uint32_t data) {
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ctx->buffer[ctx->offset++] = (data >> 0) & 0xff;
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ctx->buffer[ctx->offset++] = (data >> 8) & 0xff;
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ctx->buffer[ctx->offset++] = (data >> 16) & 0xff;
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ctx->buffer[ctx->offset++] = (data >> 24) & 0xff;
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}
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static inline void nem_write_u64(nem_transaction_ctx *ctx, uint64_t data) {
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nem_write_u32(ctx, (data >> 0) & 0xffffffff);
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nem_write_u32(ctx, (data >> 32) & 0xffffffff);
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}
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static inline void nem_write(nem_transaction_ctx *ctx, const uint8_t *data, uint32_t length) {
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nem_write_u32(ctx, length);
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memcpy(&ctx->buffer[ctx->offset], data, length);
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ctx->offset += length;
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}
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static inline bool nem_can_write(nem_transaction_ctx *ctx, size_t needed) {
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return (ctx->offset + needed) <= ctx->size;
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}
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static inline bool nem_write_mosaic_str(nem_transaction_ctx *ctx, const char *name, const char *value) {
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uint32_t name_length = strlen(name);
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uint32_t value_length = strlen(value);
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#define NEM_SERIALIZE \
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serialize_u32(sizeof(uint32_t) + name_length + sizeof(uint32_t) + value_length) \
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serialize_write((uint8_t *) name, name_length) \
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serialize_write((uint8_t *) value, value_length)
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#include "nem_serialize.h"
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return true;
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}
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static inline bool nem_write_mosaic_bool(nem_transaction_ctx *ctx, const char *name, bool value) {
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return nem_write_mosaic_str(ctx, name, value ? "true" : "false");
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}
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static inline bool nem_write_mosaic_u64(nem_transaction_ctx *ctx, const char *name, uint64_t value) {
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char buffer[21];
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if (bn_format_uint64(value, NULL, NULL, 0, 0, false, buffer, sizeof(buffer)) == 0) {
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return false;
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}
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return nem_write_mosaic_str(ctx, name, buffer);
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}
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void nem_get_address_raw(const ed25519_public_key public_key, uint8_t version, uint8_t *address) {
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uint8_t hash[SHA3_256_DIGEST_LENGTH];
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/* 1. Perform 256-bit Sha3 on the public key */
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keccak_256(public_key, sizeof(ed25519_public_key), hash);
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/* 2. Perform 160-bit Ripemd of hash resulting from step 1. */
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ripemd160(hash, SHA3_256_DIGEST_LENGTH, &address[1]);
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/* 3. Prepend version byte to Ripemd hash (either 0x68 or 0x98) */
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address[0] = version;
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/* 4. Perform 256-bit Sha3 on the result, take the first four bytes as a checksum */
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keccak_256(address, 1 + RIPEMD160_DIGEST_LENGTH, hash);
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/* 5. Concatenate output of step 3 and the checksum from step 4 */
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memcpy(&address[1 + RIPEMD160_DIGEST_LENGTH], hash, 4);
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MEMSET_BZERO(hash, sizeof(hash));
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}
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bool nem_get_address(const ed25519_public_key public_key, uint8_t version, char *address) {
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uint8_t pubkeyhash[NEM_ADDRESS_SIZE_RAW];
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nem_get_address_raw(public_key, version, pubkeyhash);
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char *ret = base32_encode(pubkeyhash, sizeof(pubkeyhash), address, NEM_ADDRESS_SIZE + 1, BASE32_ALPHABET_RFC4648);
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MEMSET_BZERO(pubkeyhash, sizeof(pubkeyhash));
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return (ret != NULL);
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}
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bool nem_validate_address_raw(const uint8_t *address, uint8_t network) {
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if (!nem_network_name(network) || address[0] != network) {
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return false;
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}
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uint8_t hash[SHA3_256_DIGEST_LENGTH];
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keccak_256(address, 1 + RIPEMD160_DIGEST_LENGTH, hash);
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bool valid = (memcmp(&address[1 + RIPEMD160_DIGEST_LENGTH], hash, 4) == 0);
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MEMSET_BZERO(hash, sizeof(hash));
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return valid;
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}
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bool nem_validate_address(const char *address, uint8_t network) {
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uint8_t pubkeyhash[NEM_ADDRESS_SIZE_RAW];
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if (strlen(address) != NEM_ADDRESS_SIZE) {
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return false;
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}
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uint8_t *ret = base32_decode(address, NEM_ADDRESS_SIZE, pubkeyhash, sizeof(pubkeyhash), BASE32_ALPHABET_RFC4648);
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bool valid = (ret != NULL) && nem_validate_address_raw(pubkeyhash, network);
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MEMSET_BZERO(pubkeyhash, sizeof(pubkeyhash));
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return valid;
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}
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void nem_transaction_start(nem_transaction_ctx *ctx, const ed25519_public_key public_key, uint8_t *buffer, size_t size) {
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memcpy(ctx->public_key, public_key, sizeof(ctx->public_key));
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ctx->buffer = buffer;
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ctx->offset = 0;
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ctx->size = size;
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}
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size_t nem_transaction_end(nem_transaction_ctx *ctx, const ed25519_secret_key private_key, ed25519_signature signature) {
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if (private_key != NULL && signature != NULL) {
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ed25519_sign_keccak(ctx->buffer, ctx->offset, private_key, ctx->public_key, signature);
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}
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return ctx->offset;
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}
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bool nem_transaction_write_common(nem_transaction_ctx *ctx,
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uint32_t type,
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uint32_t version,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline) {
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#define NEM_SERIALIZE \
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serialize_u32(type) \
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serialize_u32(version) \
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serialize_u32(timestamp) \
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serialize_write(signer, sizeof(ed25519_public_key)) \
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serialize_u64(fee) \
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serialize_u32(deadline)
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#include "nem_serialize.h"
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return true;
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}
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bool nem_transaction_create_transfer(nem_transaction_ctx *ctx,
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uint8_t network,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline,
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const char *recipient,
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uint64_t amount,
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const uint8_t *payload,
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uint32_t length,
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bool encrypted,
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uint32_t mosaics) {
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if (!signer) {
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signer = ctx->public_key;
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}
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if (!payload) {
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length = 0;
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}
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bool ret = nem_transaction_write_common(ctx,
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NEM_TRANSACTION_TYPE_TRANSFER,
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network << 24 | (mosaics ? 2 : 1),
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timestamp,
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signer,
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fee,
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deadline);
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if (!ret) return false;
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#define NEM_SERIALIZE \
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serialize_write((uint8_t *) recipient, NEM_ADDRESS_SIZE) \
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serialize_u64(amount)
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#include "nem_serialize.h"
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if (length) {
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#define NEM_SERIALIZE \
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serialize_u32(sizeof(uint32_t) + sizeof(uint32_t) + length) \
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serialize_u32(encrypted ? 0x02 : 0x01) \
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serialize_write(payload, length)
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#include "nem_serialize.h"
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} else {
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#define NEM_SERIALIZE \
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serialize_u32(0)
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#include "nem_serialize.h"
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}
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if (mosaics) {
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#define NEM_SERIALIZE \
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serialize_u32(mosaics)
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#include "nem_serialize.h"
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}
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return true;
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}
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bool nem_transaction_write_mosaic(nem_transaction_ctx *ctx,
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const char *namespace,
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const char *mosaic,
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uint64_t quantity) {
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size_t namespace_length = strlen(namespace);
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size_t mosaic_length = strlen(mosaic);
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size_t identifier_length = sizeof(uint32_t) + namespace_length + sizeof(uint32_t) + mosaic_length;
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#define NEM_SERIALIZE \
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serialize_u32(sizeof(uint32_t) + sizeof(uint64_t) + identifier_length) \
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serialize_u32(identifier_length) \
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serialize_write((uint8_t *) namespace, namespace_length) \
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serialize_write((uint8_t *) mosaic, mosaic_length) \
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serialize_u64(quantity)
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#include "nem_serialize.h"
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return true;
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}
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bool nem_transaction_create_multisig(nem_transaction_ctx *ctx,
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uint8_t network,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline,
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const nem_transaction_ctx *inner) {
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if (!signer) {
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signer = ctx->public_key;
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}
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bool ret = nem_transaction_write_common(ctx,
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NEM_TRANSACTION_TYPE_MULTISIG,
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network << 24 | 1,
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timestamp,
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signer,
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fee,
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deadline);
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if (!ret) return false;
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#define NEM_SERIALIZE \
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serialize_write(inner->buffer, inner->offset)
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#include "nem_serialize.h"
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return true;
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}
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bool nem_transaction_create_multisig_signature(nem_transaction_ctx *ctx,
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uint8_t network,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline,
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const nem_transaction_ctx *inner) {
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if (!signer) {
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signer = ctx->public_key;
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}
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bool ret = nem_transaction_write_common(ctx,
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NEM_TRANSACTION_TYPE_MULTISIG_SIGNATURE,
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network << 24 | 1,
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timestamp,
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signer,
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fee,
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deadline);
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if (!ret) return false;
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char address[NEM_ADDRESS_SIZE + 1];
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nem_get_address(inner->public_key, network, address);
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uint8_t hash[SHA3_256_DIGEST_LENGTH];
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keccak_256(inner->buffer, inner->offset, hash);
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#define NEM_SERIALIZE \
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serialize_u32(sizeof(uint32_t) + SHA3_256_DIGEST_LENGTH) \
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serialize_write(hash, SHA3_256_DIGEST_LENGTH) \
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serialize_write((uint8_t *) address, NEM_ADDRESS_SIZE)
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#include "nem_serialize.h"
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return true;
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}
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bool nem_transaction_create_provision_namespace(nem_transaction_ctx *ctx,
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uint8_t network,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline,
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const char *namespace,
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const char *parent,
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const char *rental_sink,
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uint64_t rental_fee) {
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if (!signer) {
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signer = ctx->public_key;
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}
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bool ret = nem_transaction_write_common(ctx,
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NEM_TRANSACTION_TYPE_PROVISION_NAMESPACE,
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network << 24 | 1,
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timestamp,
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signer,
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fee,
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deadline);
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if (!ret) return false;
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if (parent) {
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#define NEM_SERIALIZE \
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serialize_write((uint8_t *) rental_sink, NEM_ADDRESS_SIZE) \
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serialize_u64(rental_fee) \
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serialize_write((uint8_t *) namespace, strlen(namespace)) \
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serialize_write((uint8_t *) parent, strlen(parent))
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#include "nem_serialize.h"
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} else {
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#define NEM_SERIALIZE \
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serialize_write((uint8_t *) rental_sink, NEM_ADDRESS_SIZE) \
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serialize_u64(rental_fee) \
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serialize_write((uint8_t *) namespace, strlen(namespace)) \
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serialize_u32(0xffffffff)
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#include "nem_serialize.h"
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}
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return true;
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}
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bool nem_transaction_create_mosaic_creation(nem_transaction_ctx *ctx,
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uint8_t network,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline,
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const char *namespace,
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const char *mosaic,
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const char *description,
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uint32_t divisibility,
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uint64_t supply,
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bool mutable_supply,
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bool transferable,
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uint32_t levy_type,
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uint64_t levy_fee,
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const char *levy_address,
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const char *levy_namespace,
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const char *levy_mosaic,
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const char *creation_sink,
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uint64_t creation_fee) {
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if (!signer) {
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signer = ctx->public_key;
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}
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bool ret = nem_transaction_write_common(ctx,
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NEM_TRANSACTION_TYPE_MOSAIC_CREATION,
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network << 24 | 1,
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timestamp,
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signer,
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fee,
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deadline);
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if (!ret) return false;
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size_t namespace_length = strlen(namespace);
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size_t mosaic_length = strlen(mosaic);
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size_t identifier_length = sizeof(uint32_t) + namespace_length + sizeof(uint32_t) + mosaic_length;
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// This length will be rewritten later on
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nem_transaction_ctx state;
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memcpy(&state, ctx, sizeof(state));
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#define NEM_SERIALIZE \
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serialize_u32(0) \
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serialize_write(signer, sizeof(ed25519_public_key)) \
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serialize_u32(identifier_length) \
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serialize_write((uint8_t *) namespace, namespace_length) \
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serialize_write((uint8_t *) mosaic, mosaic_length) \
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serialize_write((uint8_t *) description, strlen(description)) \
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serialize_u32(4) // Number of properties
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#include "nem_serialize.h"
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if (!nem_write_mosaic_u64(ctx, "divisibility", divisibility)) return false;
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if (!nem_write_mosaic_u64(ctx, "initialSupply", supply)) return false;
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if (!nem_write_mosaic_bool(ctx, "supplyMutable", mutable_supply)) return false;
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if (!nem_write_mosaic_bool(ctx, "transferable", transferable)) return false;
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if (levy_type) {
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size_t levy_namespace_length = strlen(levy_namespace);
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size_t levy_mosaic_length = strlen(levy_mosaic);
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size_t levy_identifier_length = sizeof(uint32_t) + levy_namespace_length + sizeof(uint32_t) + levy_mosaic_length;
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#define NEM_SERIALIZE \
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serialize_u32(sizeof(uint32_t) + sizeof(uint32_t) + NEM_ADDRESS_SIZE + sizeof(uint32_t) + levy_identifier_length + sizeof(uint64_t)) \
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serialize_u32(levy_type) \
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serialize_write((uint8_t *) levy_address, NEM_ADDRESS_SIZE) \
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serialize_u32(levy_identifier_length) \
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serialize_write((uint8_t *) levy_namespace, levy_namespace_length) \
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serialize_write((uint8_t *) levy_mosaic, levy_mosaic_length) \
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serialize_u64(levy_fee)
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#include "nem_serialize.h"
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} else {
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#define NEM_SERIALIZE \
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serialize_u32(0)
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#include "nem_serialize.h"
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}
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// Rewrite length
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nem_write_u32(&state, ctx->offset - state.offset - sizeof(uint32_t));
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#define NEM_SERIALIZE \
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serialize_write((uint8_t *) creation_sink, NEM_ADDRESS_SIZE) \
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serialize_u64(creation_fee)
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#include "nem_serialize.h"
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return true;
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}
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bool nem_transaction_create_mosaic_supply_change(nem_transaction_ctx *ctx,
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uint8_t network,
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uint32_t timestamp,
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const ed25519_public_key signer,
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uint64_t fee,
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uint32_t deadline,
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const char *namespace,
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const char *mosaic,
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uint32_t type,
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uint64_t delta) {
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if (!signer) {
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signer = ctx->public_key;
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}
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bool ret = nem_transaction_write_common(ctx,
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NEM_TRANSACTION_TYPE_MOSAIC_SUPPLY_CHANGE,
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network << 24 | 1,
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timestamp,
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signer,
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fee,
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deadline);
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if (!ret) return false;
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size_t namespace_length = strlen(namespace);
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size_t mosaic_length = strlen(mosaic);
|
|
size_t identifier_length = sizeof(uint32_t) + namespace_length + sizeof(uint32_t) + mosaic_length;
|
|
|
|
#define NEM_SERIALIZE \
|
|
serialize_u32(identifier_length) \
|
|
serialize_write((uint8_t *) namespace, namespace_length) \
|
|
serialize_write((uint8_t *) mosaic, mosaic_length) \
|
|
serialize_u32(type) \
|
|
serialize_u64(delta)
|
|
|
|
#include "nem_serialize.h"
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_transaction_create_aggregate_modification(nem_transaction_ctx *ctx,
|
|
uint8_t network,
|
|
uint32_t timestamp,
|
|
const ed25519_public_key signer,
|
|
uint64_t fee,
|
|
uint32_t deadline,
|
|
uint32_t modifications,
|
|
bool relative_change) {
|
|
|
|
if (!signer) {
|
|
signer = ctx->public_key;
|
|
}
|
|
|
|
bool ret = nem_transaction_write_common(ctx,
|
|
NEM_TRANSACTION_TYPE_AGGREGATE_MODIFICATION,
|
|
network << 24 | (relative_change ? 2 : 1),
|
|
timestamp,
|
|
signer,
|
|
fee,
|
|
deadline);
|
|
if (!ret) return false;
|
|
|
|
#define NEM_SERIALIZE \
|
|
serialize_u32(modifications)
|
|
|
|
#include "nem_serialize.h"
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_transaction_write_cosignatory_modification(nem_transaction_ctx *ctx,
|
|
uint32_t type,
|
|
const ed25519_public_key cosignatory) {
|
|
|
|
#define NEM_SERIALIZE \
|
|
serialize_u32(sizeof(uint32_t) + sizeof(uint32_t) + sizeof(ed25519_public_key)) \
|
|
serialize_u32(type) \
|
|
serialize_write(cosignatory, sizeof(ed25519_public_key))
|
|
|
|
#include "nem_serialize.h"
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_transaction_write_minimum_cosignatories(nem_transaction_ctx *ctx,
|
|
int32_t relative_change) {
|
|
|
|
#define NEM_SERIALIZE \
|
|
serialize_u32(sizeof(uint32_t)) \
|
|
serialize_u32((uint32_t) relative_change)
|
|
|
|
#include "nem_serialize.h"
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_transaction_create_importance_transfer(nem_transaction_ctx *ctx,
|
|
uint8_t network,
|
|
uint32_t timestamp,
|
|
const ed25519_public_key signer,
|
|
uint64_t fee,
|
|
uint32_t deadline,
|
|
uint32_t mode,
|
|
const ed25519_public_key remote) {
|
|
|
|
if (!signer) {
|
|
signer = ctx->public_key;
|
|
}
|
|
|
|
bool ret = nem_transaction_write_common(ctx,
|
|
NEM_TRANSACTION_TYPE_IMPORTANCE_TRANSFER,
|
|
network << 24 | 1,
|
|
timestamp,
|
|
signer,
|
|
fee,
|
|
deadline);
|
|
if (!ret) return false;
|
|
|
|
#define NEM_SERIALIZE \
|
|
serialize_u32(mode) \
|
|
serialize_write(remote, sizeof(ed25519_public_key))
|
|
|
|
#include "nem_serialize.h"
|
|
|
|
return true;
|
|
}
|