| 1649 | } |
| 1650 | |
| 1651 | u8 *hsmd_init(struct secret hsm_secret, |
| 1652 | struct bip32_key_version bip32_key_version) |
| 1653 | { |
| 1654 | u8 bip32_seed[BIP32_ENTROPY_LEN_256]; |
| 1655 | struct pubkey key; |
| 1656 | struct point32 bolt12; |
| 1657 | u32 salt = 0; |
| 1658 | struct ext_key master_extkey, child_extkey; |
| 1659 | struct node_id node_id; |
| 1660 | struct secret onion_reply_secret; |
| 1661 | |
| 1662 | /*~ Don't swap this. */ |
| 1663 | sodium_mlock(secretstuff.hsm_secret.data, |
| 1664 | sizeof(secretstuff.hsm_secret.data)); |
| 1665 | memcpy(secretstuff.hsm_secret.data, hsm_secret.data, sizeof(hsm_secret.data)); |
| 1666 | |
| 1667 | assert(bip32_key_version.bip32_pubkey_version == BIP32_VER_MAIN_PUBLIC |
| 1668 | || bip32_key_version.bip32_pubkey_version == BIP32_VER_TEST_PUBLIC); |
| 1669 | |
| 1670 | assert(bip32_key_version.bip32_privkey_version == BIP32_VER_MAIN_PRIVATE |
| 1671 | || bip32_key_version.bip32_privkey_version == BIP32_VER_TEST_PRIVATE); |
| 1672 | |
| 1673 | /* Fill in the BIP32 tree for bitcoin addresses. */ |
| 1674 | /* In libwally-core, the version BIP32_VER_TEST_PRIVATE is for testnet/regtest, |
| 1675 | * and BIP32_VER_MAIN_PRIVATE is for mainnet. For litecoin, we also set it like |
| 1676 | * bitcoin else.*/ |
| 1677 | do { |
| 1678 | hkdf_sha256(bip32_seed, sizeof(bip32_seed), |
| 1679 | &salt, sizeof(salt), |
| 1680 | &secretstuff.hsm_secret, |
| 1681 | sizeof(secretstuff.hsm_secret), |
| 1682 | "bip32 seed", strlen("bip32 seed")); |
| 1683 | salt++; |
| 1684 | } while (bip32_key_from_seed(bip32_seed, sizeof(bip32_seed), |
| 1685 | bip32_key_version.bip32_privkey_version, |
| 1686 | 0, &master_extkey) != WALLY_OK); |
| 1687 | |
| 1688 | #if DEVELOPER |
| 1689 | /* In DEVELOPER mode, we can override with --dev-force-bip32-seed */ |
| 1690 | if (dev_force_bip32_seed) { |
| 1691 | if (bip32_key_from_seed(dev_force_bip32_seed->data, |
| 1692 | sizeof(dev_force_bip32_seed->data), |
| 1693 | bip32_key_version.bip32_privkey_version, |
| 1694 | 0, &master_extkey) != WALLY_OK) |
| 1695 | hsmd_status_failed(STATUS_FAIL_INTERNAL_ERROR, |
| 1696 | "Can't derive bip32 master key"); |
| 1697 | } |
| 1698 | #endif /* DEVELOPER */ |
| 1699 | |
| 1700 | /* BIP 32: |
| 1701 | * |
| 1702 | * The default wallet layout |
| 1703 | * |
| 1704 | * An HDW is organized as several 'accounts'. Accounts are numbered, |
| 1705 | * the default account ("") being number 0. Clients are not required |
| 1706 | * to support more than one account - if not, they only use the |
| 1707 | * default account. |
| 1708 | * |
no test coverage detected