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trezor-mcu
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layout: recognize known bip44/bip49 paths in GetAddress dialog

This commit is contained in:
Pavol Rusnak 2017-11-16 18:34:59 +01:00
parent cc0896c334
commit a713fca857
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 66 additions and 0 deletions
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66
firmware/layout2.c
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@ -325,6 +325,25 @@ void layoutResetWord(const char *word, int pass, int word_pos, bool last)
oledRefresh();
}
static const char *slip44_extras(uint32_t coin_type)
{
if ((coin_type & 0x80000000) == 0) {
return 0;
}
switch (coin_type & 0x7fffffff) {
case 40: return "EXP"; // Expanse
case 43: return "NEM"; // NEM
case 60: return "ETH"; // Ethereum Mainnet
case 61: return "ETC"; // Ethereum Classic Mainnet
case 108: return "UBQ"; // UBIQ
case 137: return "RSK"; // Rootstock Mainnet
case 37310: return "tRSK"; // Rootstock Testnet
}
return 0;
}
#define BIP32_MAX_LAST_ELEMENT 1000000
static const char *address_n_str(const uint32_t *address_n, size_t address_n_count)
{
if (address_n_count > 8) {
@ -334,6 +353,53 @@ static const char *address_n_str(const uint32_t *address_n, size_t address_n_cou
return _("Path: m");
}
// known BIP44/49 path
static char path[100];
if (address_n_count == 5 &&
(address_n[0] == (0x80000000 + 44) || address_n[0] == (0x80000000 + 49)) &&
(address_n[1] & 0x80000000) &&
(address_n[2] & 0x80000000) &&
(address_n[3] <= 1) &&
(address_n[4] <= BIP32_MAX_LAST_ELEMENT)) {
bool segwit = (address_n[0] == (0x80000000 + 49));
bool legacy = false;
const CoinInfo *coin = coinByCoinType(address_n[1]);
const char *abbr = 0;
if (segwit) {
if (coin && coin->has_segwit && coin->has_address_type_p2sh) {
abbr = coin->coin_shortcut + 1;
}
} else {
if (coin) {
if (coin->has_segwit && coin->has_address_type_p2sh) {
legacy = true;
}
abbr = coin->coin_shortcut + 1;
} else {
abbr = slip44_extras(address_n[1]);
}
}
uint32_t accnum = (address_n[2] & 0x7fffffff) + 1;
if (abbr && accnum < 100) {
memset(path, 0, sizeof(path));
strlcpy(path, abbr, sizeof(path));
if (legacy) {
strlcat(path, " legacy", sizeof(path));
}
strlcat(path, " account #", sizeof(path));
char acc[3];
memset(acc, 0, sizeof(acc));
if (accnum < 10) {
acc[0] = '0' + accnum;
} else {
acc[0] = '0' + (accnum / 10);
acc[1] = '0' + (accnum % 10);
}
strlcat(path, acc, sizeof(path));
return path;
}
}
// "Path: m" / i '
static char address_str[7 + 8 * (1 + 9 + 1) + 1];
char *c = address_str + sizeof(address_str) - 1;