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stellar: check return value for stellar_deriveNode
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5cbeb970c9
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@ -25,7 +25,7 @@ void fsm_msgStellarGetAddress(const StellarGetAddress *msg)
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CHECK_PIN
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HDNode *node = stellar_deriveNode(msg->address_n, msg->address_n_count);
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const HDNode *node = stellar_deriveNode(msg->address_n, msg->address_n_count);
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if (!node) {
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fsm_sendFailure(FailureType_Failure_ProcessError, _("Failed to derive private key"));
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return;
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@ -60,7 +60,11 @@ void fsm_msgStellarSignTx(const StellarSignTx *msg)
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CHECK_INITIALIZED
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CHECK_PIN
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stellar_signingInit(msg);
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if (!stellar_signingInit(msg)) {
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fsm_sendFailure(FailureType_Failure_ProcessError, _("Failed to derive private key"));
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layoutHome();
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return;
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}
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// Confirm transaction basics
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stellar_layoutTransactionSummary(msg);
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@ -52,7 +52,7 @@ static StellarTransaction stellar_activeTx;
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/*
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* Starts the signing process and parses the transaction header
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*/
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void stellar_signingInit(const StellarSignTx *msg)
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bool stellar_signingInit(const StellarSignTx *msg)
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{
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memset(&stellar_activeTx, 0, sizeof(StellarTransaction));
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stellar_signing = true;
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@ -78,10 +78,9 @@ void stellar_signingInit(const StellarSignTx *msg)
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stellar_hashupdate_bytes(tx_type_bytes, sizeof(tx_type_bytes));
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// Public key comes from deriving the specified account path
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HDNode *node = stellar_deriveNode(msg->address_n, msg->address_n_count);
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const HDNode *node = stellar_deriveNode(msg->address_n, msg->address_n_count);
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if (!node) {
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// TODO: bail on error
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return;
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return false;
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}
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memcpy(&(stellar_activeTx.signing_pubkey), node->public_key + 1, sizeof(stellar_activeTx.signing_pubkey));
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@ -153,6 +152,8 @@ void stellar_signingInit(const StellarSignTx *msg)
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else {
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stellar_activeTx.network_type = 3;
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}
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return true;
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}
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bool stellar_confirmSourceAccount(bool has_source_account, const char *str_account)
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@ -1229,7 +1230,12 @@ bool stellar_allOperationsConfirmed()
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*/
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void stellar_getSignatureForActiveTx(uint8_t *out_signature)
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{
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HDNode *node = stellar_deriveNode(stellar_activeTx.address_n, stellar_activeTx.address_n_count);
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const HDNode *node = stellar_deriveNode(stellar_activeTx.address_n, stellar_activeTx.address_n_count);
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if (!node) {
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// return empty signature when we can't derive node
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memset(out_signature, 0, 64);
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return;
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}
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// Signature is the ed25519 detached signature of the sha256 of all the bytes
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// that have been read so far
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@ -1497,7 +1503,7 @@ uint16_t stellar_crc16(uint8_t *bytes, uint32_t length)
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*
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* All paths must be hardened
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*/
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HDNode *stellar_deriveNode(const uint32_t *address_n, size_t address_n_count)
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const HDNode *stellar_deriveNode(const uint32_t *address_n, size_t address_n_count)
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{
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static CONFIDENTIAL HDNode node;
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const char *curve = "ed25519";
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@ -1564,7 +1570,7 @@ void stellar_hashupdate_bool(bool value)
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}
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}
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void stellar_hashupdate_string(uint8_t *data, size_t len)
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void stellar_hashupdate_string(const uint8_t *data, size_t len)
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{
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// Hash the length of the string
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stellar_hashupdate_uint32((uint32_t)len);
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@ -1583,7 +1589,7 @@ void stellar_hashupdate_string(uint8_t *data, size_t len)
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}
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}
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void stellar_hashupdate_address(uint8_t *address_bytes)
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void stellar_hashupdate_address(const uint8_t *address_bytes)
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{
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// First 4 bytes of an address are the type. There's only one type (0)
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stellar_hashupdate_uint32(0);
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@ -1799,9 +1805,9 @@ void stellar_layoutSigningDialog(const char *line1, const char *line2, const cha
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int offset_y = 1;
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int line_height = 9;
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HDNode *node = stellar_deriveNode(address_n, address_n_count);
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const HDNode *node = stellar_deriveNode(address_n, address_n_count);
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if (!node) {
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// TODO: bail on error
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// abort on error
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return;
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}
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@ -53,7 +53,7 @@ typedef struct {
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} StellarTransaction;
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// Signing process
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void stellar_signingInit(const StellarSignTx *tx);
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bool stellar_signingInit(const StellarSignTx *tx);
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void stellar_signingAbort(const char *reason);
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bool stellar_confirmSourceAccount(bool has_source_account, const char *str_account);
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bool stellar_confirmCreateAccountOp(const StellarCreateAccountOp *msg);
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@ -74,7 +74,7 @@ void stellar_layoutTransactionSummary(const StellarSignTx *msg);
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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);
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// Helpers
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HDNode *stellar_deriveNode(const uint32_t *address_n, size_t address_n_count);
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const HDNode *stellar_deriveNode(const uint32_t *address_n, size_t address_n_count);
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size_t stellar_publicAddressAsStr(const uint8_t *bytes, char *out, size_t outlen);
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const char **stellar_lineBreakAddress(const uint8_t *addrbytes);
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@ -82,8 +82,8 @@ const char **stellar_lineBreakAddress(const uint8_t *addrbytes);
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void stellar_hashupdate_uint32(uint32_t value);
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void stellar_hashupdate_uint64(uint64_t value);
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void stellar_hashupdate_bool(bool value);
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void stellar_hashupdate_string(uint8_t *data, size_t len);
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void stellar_hashupdate_address(uint8_t *address_bytes);
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void stellar_hashupdate_string(const uint8_t *data, size_t len);
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void stellar_hashupdate_address(const uint8_t *address_bytes);
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void stellar_hashupdate_asset(const StellarAssetType *asset);
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void stellar_hashupdate_bytes(const uint8_t *data, size_t len);
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