errors.h

#ifndef H_CARDANO_APP_ERRORS
#define H_CARDANO_APP_ERRORS

enum {
	// Successful responses
	SUCCESS                 = 0x9000,

	// Start of error which trigger automatic response
	// Note that any such error will reset
	// multi-APDU exchange
	_ERR_AUTORESPOND_START         = 0x6E00,

	// Bad request header
	ERR_MALFORMED_REQUEST_HEADER   = 0x6E01,
	// Unknown CLA
	ERR_BAD_CLA                    = 0x6E02,
	// Unknown INS
	ERR_UNKNOWN_INS                = 0x6E03,
	// attempt to change INS while the current call was not finished
	ERR_STILL_IN_CALL              = 0x6E04,
	// P1 or P2 is invalid
	ERR_INVALID_REQUEST_PARAMETERS = 0x6E05,
	// Request is not valid in the context of previous calls
	ERR_INVALID_STATE              = 0x6E06,
	// Some part of request data is invalid (or unknown to this app)
	// (includes not enough data and too much data)
	ERR_INVALID_DATA               = 0x6E07,
	// previously used for rejected BIP44 paths, now we use ERR_REJECTED_BY_POLICY
	// ERR_INVALID_BIP44_PATH         = 0x6E08,

	// User rejected the action
	ERR_REJECTED_BY_USER           = 0x6E09,
	// Ledger security policy rejected the action
	ERR_REJECTED_BY_POLICY         = 0x6E10,

	// Pin screen
	ERR_DEVICE_LOCKED              = 0x6E11,

	// previously used for unsupported Shelley address types
	// ERR_UNSUPPORTED_ADDRESS_TYPE   = 0x6E12,


	// end of errors which trigger automatic response
	_ERR_AUTORESPOND_END           = 0x6E13,

	// Errors below SHOULD NOT be returned to the client
	// Instead, leaking these to the main() scope
	// means unexpected programming error
	// and we should stop further processing
	// to avoid exploits


	// Internal errors
	ERR_ASSERT                = 0x4700,
	ERR_NOT_IMPLEMENTED       = 0x4701,

	// stream
	ERR_NOT_ENOUGH_INPUT      = 0x4710,
	ERR_DATA_TOO_LARGE        = 0x4711,

	// cbor
	ERR_UNEXPECTED_TOKEN      = 0x4720,

};

#endif // H_CARDANO_APP_ERRORS