/* * This file is part of the Trezor project, https://trezor.io/ * * Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com> * * 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 __MESSAGES_H__ #define __MESSAGES_H__ #include <stdbool.h> #include <stdint.h> #include "trezor.h" #include "usb.h" // The size of the message header "?##<2 bytes msg_id><4 bytes msg_size>". #define MSG_HEADER_SIZE 9 // Maximum size of an incoming protobuf-encoded message without headers. #define MSG_IN_ENCODED_SIZE (16 * 1024) // Maximum size of a C struct containing a decoded incoming message. #define MSG_IN_DECODED_SIZE (16 * 1024) // Buffer size for outgoing USB packets with headers. #define MSG_OUT_BUFFER_SIZE (3 * 1024) // Maximum size of an outgoing protobuf-encoded message without headers. // (Continuation packets have a one byte "?" header.) #define MSG_OUT_ENCODED_SIZE \ (MSG_OUT_BUFFER_SIZE - MSG_HEADER_SIZE - \ ((MSG_OUT_BUFFER_SIZE / USB_PACKET_SIZE) - 1)) // Maximum size of a C struct containing a decoded outgoing message. #define MSG_OUT_DECODED_SIZE (3 * 1024) #define msg_read(buf, len) msg_read_common('n', (buf), (len)) #define msg_write(id, ptr) msg_write_common('n', (id), (ptr)) const uint8_t *msg_out_data(void); #if DEBUG_LINK // Buffer size for outgoing debuglink USB packets with headers. #define MSG_DEBUG_OUT_BUFFER_SIZE (2 * 1024) // Maximum size of an outgoing protobuf-encoded debug message without headers. // (Continuation packets have a one byte "?" header.) #define MSG_DEBUG_OUT_ENCODED_SIZE \ (MSG_DEBUG_OUT_BUFFER_SIZE - MSG_HEADER_SIZE - \ ((MSG_DEBUG_OUT_BUFFER_SIZE / USB_PACKET_SIZE) - 1)) #define msg_debug_read(buf, len) msg_read_common('d', (buf), (len)) #define msg_debug_write(id, ptr) msg_write_common('d', (id), (ptr)) const uint8_t *msg_debug_out_data(void); #endif void msg_read_common(char type, const uint8_t *buf, uint32_t len); bool msg_write_common(char type, uint16_t msg_id, const void *msg_ptr); void msg_read_tiny(const uint8_t *buf, int len); extern uint8_t msg_tiny[128]; extern uint16_t msg_tiny_id; #endif