mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-17 11:58:13 +00:00
466 lines
18 KiB
C
466 lines
18 KiB
C
/*
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* Copyright (c) Pavol Rusnak, Jan Pochyla, SatoshiLabs
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*
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* Licensed under TREZOR License
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* see LICENSE file for details
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "py/objstr.h"
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#if MICROPY_PY_TREZORMSG
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#if defined TREZOR_STM32
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#include "modtrezormsg-stm32.h"
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#include "pendsv.h"
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#elif defined TREZOR_UNIX
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#include "modtrezormsg-unix.h"
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#else
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#error Unsupported TREZOR port. Only STM32 and UNIX ports are supported.
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#endif
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typedef struct _mp_obj_USB_t {
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mp_obj_base_t base;
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usb_dev_info_t info;
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} mp_obj_USB_t;
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static const char *get_0str(mp_obj_t o, size_t min_len, size_t max_len) {
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size_t len;
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const char *s = mp_obj_str_get_data(o, &len);
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if ((s != NULL) && (len >= min_len) && (len <= max_len)) {
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return s;
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} else {
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return NULL;
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}
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}
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STATIC mp_obj_t mod_TrezorMsg_USB_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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STATIC const mp_arg_t allowed_args[] = {
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{ MP_QSTR_vendor_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_product_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_release_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_manufacturer_str, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_product_str, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_serial_number_str, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_configuration_str, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_interface_str, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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};
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mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
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const mp_int_t vendor_id = vals[0].u_int;
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const mp_int_t product_id = vals[1].u_int;
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const mp_int_t release_num = vals[2].u_int;
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const char *manufacturer_str = get_0str(vals[3].u_obj, 0, 32);
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const char *product_str = get_0str(vals[4].u_obj, 0, 32);
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const char *serial_number_str = get_0str(vals[5].u_obj, 0, 32);
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const char *configuration_str = get_0str(vals[6].u_obj, 0, 32);
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const char *interface_str = get_0str(vals[7].u_obj, 0, 32);
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if (vendor_id < 0 || vendor_id > 65535) {
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mp_raise_ValueError("vendor_id is invalid");
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}
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if (product_id < 0 || product_id > 65535) {
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mp_raise_ValueError("product_id is invalid");
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}
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if (manufacturer_str == NULL) {
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mp_raise_ValueError("manufacturer_str is invalid");
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}
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if (product_str == NULL) {
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mp_raise_ValueError("product_str is invalid");
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}
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if (serial_number_str == NULL) {
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mp_raise_ValueError("serial_number_str is invalid");
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}
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if (configuration_str == NULL) {
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mp_raise_ValueError("configuration_str is invalid");
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}
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if (interface_str == NULL) {
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mp_raise_ValueError("interface_str is invalid");
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}
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mp_obj_USB_t *o = m_new_obj(mp_obj_USB_t);
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o->base.type = type;
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o->info.vendor_id = (uint16_t)(vendor_id);
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o->info.product_id = (uint16_t)(product_id);
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o->info.release_num = (uint16_t)(release_num);
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o->info.manufacturer_str = (const uint8_t *)(manufacturer_str);
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o->info.product_str = (const uint8_t *)(product_str);
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o->info.serial_number_str = (const uint8_t *)(serial_number_str);
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o->info.configuration_str = (const uint8_t *)(configuration_str);
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o->info.interface_str = (const uint8_t *)(interface_str);
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return MP_OBJ_FROM_PTR(o);
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}
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STATIC const mp_rom_map_elem_t mod_TrezorMsg_USB_locals_dict_table[] = {};
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STATIC MP_DEFINE_CONST_DICT(mod_TrezorMsg_USB_locals_dict, mod_TrezorMsg_USB_locals_dict_table);
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STATIC const mp_obj_type_t mod_TrezorMsg_USB_type = {
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{ &mp_type_type },
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.name = MP_QSTR_USB,
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.make_new = mod_TrezorMsg_USB_make_new,
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.locals_dict = (void*)&mod_TrezorMsg_USB_locals_dict,
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};
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typedef struct _mp_obj_HID_t {
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mp_obj_base_t base;
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usb_hid_info_t info;
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} mp_obj_HID_t;
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STATIC mp_obj_t mod_TrezorMsg_HID_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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STATIC const mp_arg_t allowed_args[] = {
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{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_subclass, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_protocol, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_polling_interval, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
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{ MP_QSTR_max_packet_len, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 64} },
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{ MP_QSTR_report_desc, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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};
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mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
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const mp_int_t iface_num = vals[0].u_int;
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const mp_int_t ep_in = vals[1].u_int;
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const mp_int_t ep_out = vals[2].u_int;
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const mp_int_t subclass = vals[3].u_int;
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const mp_int_t protocol = vals[4].u_int;
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const mp_int_t polling_interval = vals[5].u_int;
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const mp_int_t max_packet_len = vals[6].u_int;
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mp_buffer_info_t report_desc;
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mp_get_buffer_raise(vals[7].u_obj, &report_desc, MP_BUFFER_READ);
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if (report_desc.buf == NULL || report_desc.len == 0 || report_desc.len > 255) {
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mp_raise_ValueError("report_desc is invalid");
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}
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if (iface_num < 0 || iface_num > 32) {
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mp_raise_ValueError("iface_num is invalid");
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}
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if (ep_in < 0 || ep_in > 255) {
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mp_raise_ValueError("ep_in is invalid");
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}
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if (ep_out < 0 || ep_out > 255) {
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mp_raise_ValueError("ep_out is invalid");
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}
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if (subclass < 0 || subclass > 255) {
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mp_raise_ValueError("subclass is invalid");
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}
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if (protocol < 0 || protocol > 255) {
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mp_raise_ValueError("protocol is invalid");
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}
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if (polling_interval < 1 || polling_interval > 255) {
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mp_raise_ValueError("polling_interval is invalid");
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}
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if (max_packet_len != 64) {
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mp_raise_ValueError("max_packet_len is invalid");
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}
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mp_obj_HID_t *o = m_new_obj(mp_obj_HID_t);
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o->base.type = type;
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o->info.rx_buffer = m_new(uint8_t, max_packet_len);
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o->info.report_desc = report_desc.buf;
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o->info.iface_num = (uint8_t)(iface_num);
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o->info.ep_in = (uint8_t)(ep_in);
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o->info.ep_out = (uint8_t)(ep_out);
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o->info.subclass = (uint8_t)(subclass);
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o->info.protocol = (uint8_t)(protocol);
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o->info.polling_interval = (uint8_t)(polling_interval);
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o->info.max_packet_len = (uint8_t)(max_packet_len);
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o->info.report_desc_len = (uint8_t)(report_desc.len);
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return MP_OBJ_FROM_PTR(o);
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}
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STATIC const mp_rom_map_elem_t mod_TrezorMsg_HID_locals_dict_table[] = {};
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STATIC MP_DEFINE_CONST_DICT(mod_TrezorMsg_HID_locals_dict, mod_TrezorMsg_HID_locals_dict_table);
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STATIC const mp_obj_type_t mod_TrezorMsg_HID_type = {
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{ &mp_type_type },
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.name = MP_QSTR_HID,
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.make_new = mod_TrezorMsg_HID_make_new,
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.locals_dict = (void*)&mod_TrezorMsg_HID_locals_dict,
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};
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typedef struct _mp_obj_VCP_t {
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mp_obj_base_t base;
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usb_vcp_info_t info;
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} mp_obj_VCP_t;
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STATIC mp_obj_t mod_TrezorMsg_VCP_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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STATIC const mp_arg_t allowed_args[] = {
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{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_data_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_ep_cmd, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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};
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mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
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const mp_int_t iface_num = vals[0].u_int;
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const mp_int_t data_iface_num = vals[1].u_int;
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const mp_int_t ep_in = vals[2].u_int;
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const mp_int_t ep_out = vals[3].u_int;
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const mp_int_t ep_cmd = vals[4].u_int;
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if (iface_num < 0 || iface_num > 32) {
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mp_raise_ValueError("iface_num is invalid");
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}
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if (data_iface_num < 0 || data_iface_num > 32) {
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mp_raise_ValueError("iface_num is invalid");
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}
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if (ep_in < 0 || ep_in > 255) {
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mp_raise_ValueError("ep_in is invalid");
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}
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if (ep_out < 0 || ep_out > 255) {
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mp_raise_ValueError("ep_out is invalid");
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}
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if (ep_cmd < 0 || ep_cmd > 255) {
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mp_raise_ValueError("ep_cmd is invalid");
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}
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const size_t vcp_buffer_len = 1024;
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const size_t vcp_packet_len = 64;
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mp_obj_VCP_t *o = m_new_obj(mp_obj_VCP_t);
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o->base.type = type;
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o->info.tx_packet = m_new(uint8_t, vcp_packet_len);
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o->info.tx_buffer = m_new(uint8_t, vcp_buffer_len);
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o->info.rx_packet = m_new(uint8_t, vcp_packet_len);
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o->info.rx_buffer = m_new(uint8_t, vcp_buffer_len);
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o->info.tx_buffer_len = vcp_buffer_len;
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o->info.rx_buffer_len = vcp_buffer_len;
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o->info.rx_intr_fn = pendsv_kbd_intr;
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o->info.rx_intr_byte = 3; // Ctrl-C
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o->info.iface_num = (uint8_t)(iface_num);
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o->info.data_iface_num = (uint8_t)(data_iface_num);
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o->info.ep_cmd = (uint8_t)(ep_cmd);
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o->info.ep_in = (uint8_t)(ep_in);
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o->info.ep_out = (uint8_t)(ep_out);
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o->info.polling_interval = 10;
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o->info.max_packet_len = (uint8_t)(vcp_packet_len);
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return MP_OBJ_FROM_PTR(o);
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}
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STATIC const mp_rom_map_elem_t mod_TrezorMsg_VCP_locals_dict_table[] = {};
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STATIC MP_DEFINE_CONST_DICT(mod_TrezorMsg_VCP_locals_dict, mod_TrezorMsg_VCP_locals_dict_table);
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STATIC const mp_obj_type_t mod_TrezorMsg_VCP_type = {
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{ &mp_type_type },
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.name = MP_QSTR_VCP,
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.make_new = mod_TrezorMsg_VCP_make_new,
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.locals_dict = (void*)&mod_TrezorMsg_VCP_locals_dict,
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};
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typedef struct _mp_obj_Msg_t {
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mp_obj_base_t base;
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mp_obj_t usb_info;
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mp_obj_t usb_ifaces;
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} mp_obj_Msg_t;
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STATIC mp_obj_t mod_TrezorMsg_Msg_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 0, 0, false);
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msg_init();
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mp_obj_Msg_t *o = m_new_obj(mp_obj_Msg_t);
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o->base.type = type;
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o->usb_info = mp_const_none;
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o->usb_ifaces = mp_const_none;
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return MP_OBJ_FROM_PTR(o);
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}
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/// def trezor.msg.init_usb(usb_info, usb_ifaces) -> None:
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/// '''
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/// Registers passed interfaces and initializes the USB stack
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/// '''
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STATIC mp_obj_t mod_TrezorMsg_Msg_init_usb(mp_obj_t self, mp_obj_t usb_info, mp_obj_t usb_ifaces) {
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mp_obj_Msg_t *o = MP_OBJ_TO_PTR(self);
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if (o->usb_info != mp_const_none || o->usb_ifaces != mp_const_none) {
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mp_raise_msg(&mp_type_RuntimeError, "already initialized");
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}
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size_t iface_cnt;
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mp_obj_t *iface_objs;
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mp_obj_get_array(usb_ifaces, &iface_cnt, &iface_objs);
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// Initialize the USB stack
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if (MP_OBJ_IS_TYPE(usb_info, &mod_TrezorMsg_USB_type)) {
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mp_obj_USB_t *usb = MP_OBJ_TO_PTR(usb_info);
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if (usb_init(&usb->info) != 0) {
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mp_raise_msg(&mp_type_RuntimeError, "failed to initialize USB");
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}
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} else {
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mp_raise_TypeError("expected USB type");
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}
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// Add all interfaces
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for (size_t i = 0; i < iface_cnt; i++) {
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mp_obj_t iface = iface_objs[i];
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if (MP_OBJ_IS_TYPE(iface, &mod_TrezorMsg_HID_type)) {
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mp_obj_HID_t *hid = MP_OBJ_TO_PTR(iface);
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if (usb_hid_add(&hid->info) != 0) {
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usb_deinit();
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mp_raise_msg(&mp_type_RuntimeError, "failed to add HID interface");
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}
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} else if (MP_OBJ_IS_TYPE(iface, &mod_TrezorMsg_VCP_type)) {
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mp_obj_VCP_t *vcp = MP_OBJ_TO_PTR(iface);
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if (usb_vcp_add(&vcp->info) != 0) {
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usb_deinit();
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mp_raise_msg(&mp_type_RuntimeError, "failed to add VCP interface");
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}
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} else {
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usb_deinit();
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mp_raise_TypeError("expected HID or VCP type");
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}
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}
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// Start the USB stack
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if (usb_start() != 0) {
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usb_deinit();
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mp_raise_msg(&mp_type_RuntimeError, "failed to start USB");
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}
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o->usb_info = usb_info;
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o->usb_ifaces = usb_ifaces;
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_TrezorMsg_Msg_init_usb_obj, mod_TrezorMsg_Msg_init_usb);
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/// def trezor.msg.deinit_usb() -> None:
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/// '''
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/// Cleans up the USB stack
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/// '''
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STATIC mp_obj_t mod_TrezorMsg_Msg_deinit_usb(mp_obj_t self) {
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usb_stop();
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usb_deinit();
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mp_obj_Msg_t *o = MP_OBJ_TO_PTR(self);
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o->usb_info = mp_const_none;
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o->usb_ifaces = mp_const_none;
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_TrezorMsg_Msg_deinit_usb_obj, mod_TrezorMsg_Msg_deinit_usb);
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/// def trezor.msg.send(iface: int, message: bytes) -> int:
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/// '''
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/// Sends message using USB HID (device) or UDP (emulator).
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/// '''
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STATIC mp_obj_t mod_TrezorMsg_Msg_send(mp_obj_t self, mp_obj_t iface, mp_obj_t message) {
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// mp_obj_Msg_t *o = MP_OBJ_TO_PTR(self);
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uint8_t i = mp_obj_get_int(iface);
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mp_buffer_info_t msg;
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mp_get_buffer_raise(message, &msg, MP_BUFFER_READ);
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ssize_t r = msg_send(i, msg.buf, msg.len);
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return MP_OBJ_NEW_SMALL_INT(r);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_TrezorMsg_Msg_send_obj, mod_TrezorMsg_Msg_send);
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#define TICK_RESOLUTION 1000
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#define TOUCH_IFACE 0
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extern uint32_t touch_read(void); // defined in HAL
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/// def trezor.msg.select(timeout_us: int) -> tuple:
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/// '''
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/// Polls the event queue and returns the event object.
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/// Function returns None if timeout specified in microseconds is reached.
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/// '''
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STATIC mp_obj_t mod_TrezorMsg_Msg_select(mp_obj_t self, mp_obj_t timeout_us) {
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// mp_obj_Msg_t *o = MP_OBJ_TO_PTR(self);
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int timeout = mp_obj_get_int(timeout_us);
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if (timeout < 0) {
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timeout = 0;
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}
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for (;;) {
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uint32_t e = touch_read();
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if (e) {
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mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(4, NULL));
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tuple->items[0] = MP_OBJ_NEW_SMALL_INT(TOUCH_IFACE);
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tuple->items[1] = MP_OBJ_NEW_SMALL_INT((e & 0xFF0000) >> 16); // event type
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tuple->items[2] = MP_OBJ_NEW_SMALL_INT((e & 0xFF00) >> 8); // x position
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tuple->items[3] = MP_OBJ_NEW_SMALL_INT((e & 0xFF)); // y position
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return MP_OBJ_FROM_PTR(tuple);
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}
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uint8_t iface;
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uint8_t recvbuf[64];
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ssize_t l = msg_recv(&iface, recvbuf, 64);
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if (l > 0) {
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if (l == 8 && memcmp("PINGPING", recvbuf, 8) == 0) {
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msg_send(iface, (const uint8_t *)"PONGPONG", 8);
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return mp_const_none;
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} else {
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mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(2, NULL));
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tuple->items[0] = MP_OBJ_NEW_SMALL_INT(iface);
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tuple->items[1] = mp_obj_new_str_of_type(&mp_type_bytes, recvbuf, l);
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return MP_OBJ_FROM_PTR(tuple);
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}
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}
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if (timeout <= 0) {
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break;
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}
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mp_hal_delay_us(TICK_RESOLUTION);
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timeout -= TICK_RESOLUTION;
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_TrezorMsg_Msg_select_obj, mod_TrezorMsg_Msg_select);
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STATIC mp_obj_t mod_TrezorMsg_Msg___del__(mp_obj_t self) {
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mp_obj_Msg_t *o = MP_OBJ_TO_PTR(self);
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if (o->usb_info != mp_const_none || o->usb_ifaces != mp_const_none) {
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usb_stop();
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usb_deinit();
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_TrezorMsg_Msg___del___obj, mod_TrezorMsg_Msg___del__);
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STATIC const mp_rom_map_elem_t mod_TrezorMsg_Msg_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_TrezorMsg_Msg___del___obj) },
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{ MP_ROM_QSTR(MP_QSTR_init_usb), MP_ROM_PTR(&mod_TrezorMsg_Msg_init_usb_obj) },
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{ MP_ROM_QSTR(MP_QSTR_deinit_usb), MP_ROM_PTR(&mod_TrezorMsg_Msg_deinit_usb_obj) },
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{ MP_ROM_QSTR(MP_QSTR_send), MP_ROM_PTR(&mod_TrezorMsg_Msg_send_obj) },
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{ MP_ROM_QSTR(MP_QSTR_select), MP_ROM_PTR(&mod_TrezorMsg_Msg_select_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(mod_TrezorMsg_Msg_locals_dict, mod_TrezorMsg_Msg_locals_dict_table);
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STATIC const mp_obj_type_t mod_TrezorMsg_Msg_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Msg,
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.make_new = mod_TrezorMsg_Msg_make_new,
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.locals_dict = (void*)&mod_TrezorMsg_Msg_locals_dict,
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};
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STATIC const mp_rom_map_elem_t mp_module_TrezorMsg_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_TrezorMsg) },
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{ MP_ROM_QSTR(MP_QSTR_USB), MP_ROM_PTR(&mod_TrezorMsg_USB_type) },
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{ MP_ROM_QSTR(MP_QSTR_HID), MP_ROM_PTR(&mod_TrezorMsg_HID_type) },
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{ MP_ROM_QSTR(MP_QSTR_VCP), MP_ROM_PTR(&mod_TrezorMsg_VCP_type) },
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{ MP_ROM_QSTR(MP_QSTR_Msg), MP_ROM_PTR(&mod_TrezorMsg_Msg_type) },
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};
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STATIC MP_DEFINE_CONST_DICT(mp_module_TrezorMsg_globals, mp_module_TrezorMsg_globals_table);
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const mp_obj_module_t mp_module_TrezorMsg = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&mp_module_TrezorMsg_globals,
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};
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#endif // MICROPY_PY_TREZORMSG
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