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Merge pull request #329 from keepkey/feature-gnocontract
Feature gnocontract
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| * This file is part of the KeepKey project. | ||
| * | ||
| * Copyright (C) 2022 markrypto | ||
| * | ||
| * 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 KEEPKEY_FIRMWARE_CONTRACTFUNCS_H | ||
| #define KEEPKEY_FIRMWARE_CONTRACTFUNCS_H | ||
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| #include <inttypes.h> | ||
| #include <stdbool.h> | ||
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| // used by gnosis proxy contracts | ||
| #define EXEC_TRANSACTION "\x6a\x76\x12\x02" | ||
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| typedef struct _EthereumSignTx EthereumSignTx; | ||
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| bool cf_isExecTx(const EthereumSignTx *msg); | ||
| bool cf_confirmExecTx(uint32_t data_total, const EthereumSignTx *msg); | ||
|
|
||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| /* | ||
| * This file is part of the KeepKey project. | ||
| * | ||
| * Copyright (C) 2022 markrypto | ||
| * | ||
| * 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/>. | ||
| */ | ||
|
|
||
| #include "keepkey/firmware/ethereum_contracts/confuncs.h" | ||
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| #include "keepkey/board/confirm_sm.h" | ||
| #include "keepkey/board/util.h" | ||
| #include "keepkey/firmware/ethereum.h" | ||
| #include "keepkey/firmware/ethereum_tokens.h" | ||
| #include "keepkey/firmware/fsm.h" | ||
| #include "trezor/crypto/address.h" | ||
|
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| bool cf_isExecTx(const EthereumSignTx *msg) { | ||
| if (memcmp(msg->data_initial_chunk.bytes, EXEC_TRANSACTION, 4) == 0) | ||
| return true; | ||
|
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| return false; | ||
| } | ||
|
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| bool cf_confirmExecTx(uint32_t data_total, const EthereumSignTx *msg) { | ||
| extern const ecdsa_curve secp256k1; | ||
| (void)data_total; | ||
| char confStr[131]; | ||
| char contractStr[41]; | ||
| uint8_t *to, *gasToken, *refundReceiver, *data; | ||
| bignum256 bnNum, gasPrice; | ||
| char txStr[32], safeGasStr[32], baseGasStr[32], gasPriceStr[32]; | ||
| TokenType const *TokenData; | ||
| int8_t *operation; | ||
| uint32_t offset, dlen; | ||
| char const *confDatStr, *confDatStr2; | ||
| unsigned ctr, n, chunk, chunkSize; | ||
| const char *title = "contract func exec_tx"; | ||
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| to = (uint8_t *)(msg->data_initial_chunk.bytes + 4 + 0*32 + 12); | ||
| for (ctr=0; ctr<20; ctr++) { | ||
| snprintf(&confStr[ctr*2], 3, "%02x", to[ctr]); | ||
| } | ||
| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "Sending to %s", confStr)) { | ||
| return false; | ||
| } | ||
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| // value | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 1*32, 32, &bnNum); | ||
| ethereumFormatAmount(&bnNum, NULL, 1 /*chainId*/, txStr, sizeof(txStr)); | ||
| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "amount %s", txStr)) { | ||
| return false; | ||
| } | ||
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| // get data bytes | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 2*32, 32, &bnNum); // data offset | ||
| offset = bn_write_uint32(&bnNum); | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + offset, 32, &bnNum); // data len | ||
| dlen = bn_write_uint32(&bnNum); | ||
| data = (uint8_t *)(msg->data_initial_chunk.bytes + 4 + 32 + offset); | ||
|
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| n = 1; | ||
| chunkSize = 39; | ||
| while (true) { | ||
| chunk=chunkSize*(n-1); | ||
| for (ctr=chunk; ctr<chunkSize+chunk && ctr<dlen; ctr++) { | ||
| snprintf(&confStr[(ctr-chunk)*2], 3, "%02x", data[ctr]); | ||
| } | ||
| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "Data payload %d: %s", n, confStr)) { | ||
| return false; | ||
| } | ||
| if (ctr >= dlen) { | ||
| break; | ||
| } | ||
| n++; | ||
| } | ||
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| // operation is an enum: https://github.com/safe-global/safe-contracts/blob/main/contracts/common/Enum.sol#L7 | ||
| operation = (int8_t *)(msg->data_initial_chunk.bytes + 4 + 3*32); | ||
| { | ||
| char *opStr; | ||
| switch (*operation) { | ||
| case 0: | ||
| opStr = "Call"; | ||
| break; | ||
| case 1: | ||
| opStr = "DelegateCall"; | ||
| break; | ||
| default: | ||
| opStr = "Unknown"; | ||
| } | ||
| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "Operation: %s", opStr)) { | ||
| return false; | ||
| } | ||
| } | ||
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| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 6*32, 32, &gasPrice); // used for payment calc | ||
| ethereumFormatAmount(&gasPrice, NULL, 1 /*chainId*/, gasPriceStr, sizeof(gasPriceStr)); | ||
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| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 4*32, 32, &bnNum); // safe transaction gas | ||
| bn_multiply(&gasPrice, &bnNum, &secp256k1.prime); | ||
| ethereumFormatAmount(&bnNum, NULL, 1 /*chainId*/, safeGasStr, sizeof(safeGasStr)); | ||
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| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 5*32, 32, &bnNum); // independent gas needed | ||
| bn_multiply(&gasPrice, &bnNum, &secp256k1.prime); | ||
| ethereumFormatAmount(&bnNum, NULL, 1 /*chainId*/, baseGasStr, sizeof(baseGasStr)); | ||
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| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "Safe tx gas: %s\nBase gas: %s\nGas price: %s", safeGasStr, baseGasStr, gasPriceStr)) { | ||
| return false; | ||
| } | ||
|
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| // gas token | ||
| gasToken = (uint8_t *)(msg->data_initial_chunk.bytes + 4 + 7*32 + 12); // token to be used for gas payment | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 7*32, 32, &bnNum); // used to check for zero | ||
| if (bn_is_zero(&bnNum)) { | ||
| // gas payment in ETH | ||
| confDatStr = "ETH"; | ||
| } else { | ||
| // gas payment in token | ||
| TokenData = tokenByChainAddress(1 /*chainId*/, (uint8_t *)gasToken); | ||
| if (strncmp(TokenData->ticker, " UNKN", 5) == 0) { | ||
| for (ctr=0; ctr<20; ctr++) { | ||
| snprintf(&contractStr[2*ctr], 3, "%02x", TokenData->address[ctr]); | ||
| } | ||
| confDatStr = contractStr; | ||
| } else { | ||
| confDatStr = TokenData->ticker; | ||
| } | ||
| } | ||
|
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| refundReceiver = (uint8_t *)(msg->data_initial_chunk.bytes + 4 + 8*32 + 12); // gas refund receiver | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 8*32, 32, &bnNum); // used to check for zero | ||
| if (bn_is_zero(&bnNum)) { | ||
| // gas refund receiver is origin | ||
| confDatStr2 = "tx origin"; | ||
| } else { | ||
| // gas refund receiver address | ||
| for (ctr=0; ctr<20; ctr++) { | ||
| snprintf(&contractStr[2*ctr], 3, "%02x", refundReceiver[ctr]); | ||
| } | ||
| confDatStr2 = contractStr; | ||
| } | ||
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| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "Gas payment token: %s\nGas refund address: %s", confDatStr, confDatStr2)) { | ||
| return false; | ||
| } | ||
|
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| // get signature data | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + 9*32, 32, &bnNum); // sig offset | ||
| offset = bn_write_uint32(&bnNum); | ||
| bn_from_bytes(msg->data_initial_chunk.bytes + 4 + offset, 32, &bnNum); // sig data len | ||
| dlen = bn_write_uint32(&bnNum); | ||
| data = (uint8_t *)(msg->data_initial_chunk.bytes + 4 + 32 + offset); | ||
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| n = 1; | ||
| chunkSize = 65; | ||
| while (true) { | ||
| chunk=chunkSize*(n-1); | ||
| for (ctr=chunk; ctr<chunkSize+chunk && ctr<dlen; ctr++) { | ||
| snprintf(&confStr[(ctr-chunk)*2], 3, "%02x", data[ctr]); | ||
| } | ||
| if (!confirm(ButtonRequestType_ButtonRequest_ConfirmOutput, | ||
| title, "Signature %d: %s", n, confStr)) { | ||
| return false; | ||
| } | ||
| if (ctr >= dlen) { | ||
| break; | ||
| } | ||
| n++; | ||
| } | ||
| return true; | ||
| } |