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pico-keys-sdk/src/usb/hid/hid.c
Pol Henarejos 65fea84df1 Fix warnings. 
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
2024-08-23 13:17:10 +02:00

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/*
* This file is part of the Pico Keys SDK distribution (https://github.com/polhenarejos/pico-keys-sdk).
* Copyright (c) 2022 Pol Henarejos.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ENABLE_EMULATION
#include "tusb.h"
#ifndef ESP_PLATFORM
#include "bsp/board.h"
#else
static portMUX_TYPE mutex = portMUX_INITIALIZER_UNLOCKED;
#endif
#endif
#include "ctap_hid.h"
#include "pico_keys.h"
#include "pico_keys_version.h"
#include "apdu.h"
#include "usb.h"
static bool mounted = false;
extern void init_fido();
bool is_nitrokey = false;
uint8_t (*get_version_major)() = NULL;
uint8_t (*get_version_minor)() = NULL;
static usb_buffer_t hid_rx[ITF_HID_TOTAL] = {0}, hid_tx[ITF_HID_TOTAL] = {0};
PACK(
typedef struct msg_packet {
uint16_t len;
uint16_t current_len;
uint8_t data[CTAP_MAX_PACKET_SIZE];
}) msg_packet_t;
msg_packet_t msg_packet = { 0 };
void tud_mount_cb() {
mounted = true;
}
bool driver_mounted_hid() {
return mounted;
}
static uint16_t send_buffer_size[ITF_HID_TOTAL] = {0};
static write_status_t last_write_result[ITF_HID_TOTAL] = {0};
CTAPHID_FRAME *ctap_req = NULL, *ctap_resp = NULL;
void send_keepalive();
int driver_process_usb_packet_hid(uint16_t read);
int driver_write_hid(uint8_t itf, const uint8_t *buffer, uint16_t buffer_size);
int driver_process_usb_nopacket_hid();
int driver_init_hid() {
#ifndef ENABLE_EMULATION
static bool _init = false;
if (_init == false) {
tud_init(BOARD_TUD_RHPORT);
_init = true;
}
#endif
ctap_req = (CTAPHID_FRAME *) (hid_rx[ITF_HID_CTAP].buffer + hid_rx[ITF_HID_CTAP].r_ptr);
apdu.header = ctap_req->init.data;
ctap_resp = (CTAPHID_FRAME *) (hid_tx[ITF_HID_CTAP].buffer);
apdu.rdata = ctap_resp->init.data;
//memset(ctap_resp, 0, sizeof(CTAPHID_FRAME));
usb_set_timeout_counter(ITF_HID, 200);
is_nitrokey = false;
hid_tx[ITF_HID_CTAP].w_ptr = hid_tx[ITF_HID_CTAP].r_ptr = 0;
send_buffer_size[ITF_HID_CTAP] = 0;
return 0;
}
uint16_t *get_send_buffer_size(uint8_t itf) {
return &send_buffer_size[itf];
}
//--------------------------------------------------------------------+
// USB HID
//--------------------------------------------------------------------+
#ifndef ENABLE_EMULATION
uint16_t (*hid_get_report_cb)(uint8_t, uint8_t, hid_report_type_t, uint8_t *, uint16_t) = NULL;
// Invoked when received GET_REPORT control request
// Application must fill buffer report's content and return its length.
// Return zero will cause the stack to STALL request
uint16_t tud_hid_get_report_cb(uint8_t itf,
uint8_t report_id,
hid_report_type_t report_type,
uint8_t *buffer,
uint16_t reqlen) {
// TODO not Implemented
(void) itf;
(void) report_id;
(void) report_type;
(void) buffer;
(void) reqlen;
printf("get_report %d %d %d\n", itf, report_id, report_type);
DEBUG_PAYLOAD(buffer, reqlen);
if (hid_get_report_cb) {
hid_get_report_cb(itf, report_id, report_type, buffer, reqlen);
}
return reqlen;
}
#endif
uint32_t hid_write_offset(uint16_t size, uint16_t offset) {
if (hid_tx[ITF_HID_CTAP].buffer[offset] != 0x81) {
DEBUG_PAYLOAD(&hid_tx[ITF_HID_CTAP].buffer[offset], size);
}
hid_tx[ITF_HID_CTAP].w_ptr += size + offset;
hid_tx[ITF_HID_CTAP].r_ptr += offset;
return size;
}
uint32_t hid_write(uint16_t size) {
return hid_write_offset(size, 0);
}
#ifndef ENABLE_EMULATION
static uint8_t keyboard_buffer[256];
static uint8_t keyboard_buffer_len = 0;
static const uint8_t conv_table[128][2] = { HID_ASCII_TO_KEYCODE };
static uint8_t keyboard_w = 0;
static bool sent_key = false;
static bool keyboard_encode = false;
void add_keyboard_buffer(const uint8_t *data, size_t data_len, bool encode) {
keyboard_buffer_len = MIN(sizeof(keyboard_buffer), data_len);
memcpy(keyboard_buffer, data, keyboard_buffer_len);
keyboard_encode = encode;
}
void append_keyboard_buffer(const uint8_t *data, size_t data_len) {
if (keyboard_buffer_len + data_len < sizeof(keyboard_buffer)) {
memcpy(keyboard_buffer + keyboard_buffer_len, data, MIN(sizeof(keyboard_buffer) - keyboard_buffer_len, data_len));
keyboard_buffer_len += MIN(sizeof(keyboard_buffer) - keyboard_buffer_len, data_len);
}
}
static void send_hid_report(uint8_t report_id) {
if (!tud_hid_ready()) {
return;
}
switch (report_id) {
case REPORT_ID_KEYBOARD: {
if (keyboard_w < keyboard_buffer_len) {
if (sent_key == false) {
uint8_t keycode[6] = { 0 };
uint8_t modifier = 0;
uint8_t chr = keyboard_buffer[keyboard_w];
if (keyboard_encode) {
if (conv_table[chr][0]) {
modifier = KEYBOARD_MODIFIER_LEFTSHIFT;
}
keycode[0] = conv_table[chr][1];
}
else {
if (chr & 0x80) {
modifier = KEYBOARD_MODIFIER_LEFTSHIFT;
}
keycode[0] = chr & 0x7f;
}
if (tud_hid_n_keyboard_report(ITF_HID_KB, REPORT_ID_KEYBOARD, modifier, keycode) == true) {
sent_key = true;
}
}
else {
if (tud_hid_n_keyboard_report(ITF_HID_KB, REPORT_ID_KEYBOARD, 0, NULL) == true) {
keyboard_w++;
sent_key = false;
}
}
}
else if (keyboard_w == keyboard_buffer_len && keyboard_buffer_len > 0) {
keyboard_w = keyboard_buffer_len = 0;
}
}
break;
default: break;
}
}
void hid_task() {
int proc_pkt = 0;
if (hid_rx[ITF_HID_CTAP].w_ptr - hid_rx[ITF_HID_CTAP].r_ptr >= 64) {
//proc_pkt = driver_process_usb_packet_hid(64);
}
if (proc_pkt == 0) {
driver_process_usb_nopacket_hid();
}
int status = card_status(ITF_HID);
if (status == CCID_OK) {
driver_exec_finished_hid(finished_data_size);
}
else if (status == CCID_ERR_BLOCKED) {
send_keepalive();
}
if (hid_tx[ITF_HID_CTAP].w_ptr > hid_tx[ITF_HID_CTAP].r_ptr && last_write_result[ITF_HID_CTAP] != WRITE_PENDING) {
if (driver_write_hid(ITF_HID_CTAP, hid_tx[ITF_HID_CTAP].buffer + hid_tx[ITF_HID_CTAP].r_ptr, 64) > 0) {
}
}
/* Keyboard ITF */
// Poll every 10ms
const uint32_t interval_ms = 10;
static uint32_t start_ms = 0;
if (board_millis() - start_ms < interval_ms) {
return;
}
start_ms += interval_ms;
// Remote wakeup
if (tud_suspended() && keyboard_buffer_len > 0) {
tud_remote_wakeup();
}
else {
send_hid_report(REPORT_ID_KEYBOARD);
}
}
#endif
void tud_hid_report_complete_cb(uint8_t instance, uint8_t const *report, uint16_t len) {
printf("report_complete %d %d %d\n", instance, len, send_buffer_size[instance]);
if (instance == ITF_HID_CTAP && len > 0) {
#ifdef ESP_PLATFORM
taskENTER_CRITICAL(&mutex);
#endif
CTAPHID_FRAME *req = (CTAPHID_FRAME *) report;
if (last_write_result[instance] == WRITE_PENDING) {
last_write_result[instance] = WRITE_SUCCESS;
if (FRAME_TYPE(req) == TYPE_INIT) {
if (req->init.cmd != CTAPHID_KEEPALIVE) {
send_buffer_size[instance] -= MIN(64 - 7, send_buffer_size[instance]);
}
}
else {
send_buffer_size[instance] -= MIN(64 - 5, send_buffer_size[instance]);
}
}
if (last_write_result[instance] == WRITE_SUCCESS) {
if (FRAME_TYPE(req) != TYPE_INIT || req->init.cmd != CTAPHID_KEEPALIVE) {
if (send_buffer_size[instance] > 0) {
ctap_resp = (CTAPHID_FRAME *) ((uint8_t *) ctap_resp + 64 - 5);
uint8_t seq = FRAME_TYPE(req) == TYPE_INIT ? 0 : FRAME_SEQ(req) + 1;
ctap_resp->cid = req->cid;
ctap_resp->cont.seq = seq;
hid_tx[ITF_HID_CTAP].r_ptr += 64 - 5;
}
else {
hid_tx[ITF_HID_CTAP].r_ptr += 64;
}
}
}
if (hid_tx[ITF_HID_CTAP].r_ptr >= hid_tx[ITF_HID_CTAP].w_ptr) {
hid_tx[ITF_HID_CTAP].r_ptr = hid_tx[ITF_HID_CTAP].w_ptr = 0;
}
#ifdef ESP_PLATFORM
taskEXIT_CRITICAL(&mutex);
#endif
}
}
#ifndef ENABLE_EMULATION
int driver_write_hid(uint8_t itf, const uint8_t *buffer, uint16_t buffer_size) {
if (last_write_result[itf] == WRITE_PENDING) {
return 0;
}
bool r = tud_hid_n_report(itf, 0, buffer, buffer_size);
last_write_result[itf] = r ? WRITE_PENDING : WRITE_FAILED;
if (last_write_result[itf] == WRITE_FAILED) {
return 0;
}
return MIN(64, buffer_size);
}
#endif
#ifndef ENABLE_EMULATION
int (*hid_set_report_cb)(uint8_t, uint8_t, hid_report_type_t, uint8_t const *, uint16_t) = NULL;
// Invoked when received SET_REPORT control request or
// received data on OUT endpoint ( Report ID = 0, Type = 0 )
void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t const *buffer, uint16_t bufsize) {
// This example doesn't use multiple report and report ID
(void) itf;
(void) report_id;
(void) report_type;
printf("set_report %d %d %d\n", itf, report_id, report_type);
if (!hid_set_report_cb || hid_set_report_cb(itf, report_id, report_type, buffer, bufsize) == 0) {
//usb_rx(itf, buffer, bufsize);
memcpy(hid_rx[itf].buffer + hid_rx[itf].w_ptr, buffer, bufsize);
hid_rx[itf].w_ptr += bufsize;
int proc_pkt = driver_process_usb_packet_hid(64);
if (proc_pkt == 0) {
driver_process_usb_nopacket_hid();
}
}
}
#endif
uint32_t last_cmd_time = 0, last_packet_time = 0;
int ctap_error(uint8_t error) {
memset((uint8_t *)ctap_resp, 0, sizeof(CTAPHID_FRAME));
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = CTAPHID_ERROR;
ctap_resp->init.bcntl = 1;
ctap_resp->init.data[0] = error;
hid_write(64);
last_packet_time = 0;
return 0;
}
uint8_t last_cmd = 0;
uint8_t last_seq = 0;
CTAPHID_FRAME last_req = { 0 };
uint32_t lock = 0;
uint8_t thread_type = 0; //1 is APDU, 2 is CBOR
extern bool cancel_button;
extern int cbor_process(uint8_t last_cmd, const uint8_t *data, size_t len);
int driver_process_usb_nopacket_hid() {
if (last_packet_time > 0 && last_packet_time + 500 < board_millis()) {
ctap_error(CTAP1_ERR_MSG_TIMEOUT);
last_packet_time = 0;
msg_packet.len = msg_packet.current_len = 0;
}
return 0;
}
extern const uint8_t fido_aid[], u2f_aid[];
extern void apdu_thread(void), cbor_thread(void);
int driver_process_usb_packet_hid(uint16_t read) {
int apdu_sent = 0;
if (read >= 5) {
driver_init_hid();
hid_rx[ITF_HID_CTAP].r_ptr += 64;
if (hid_rx[ITF_HID_CTAP].r_ptr >= hid_rx[ITF_HID_CTAP].w_ptr) {
hid_rx[ITF_HID_CTAP].r_ptr = hid_rx[ITF_HID_CTAP].w_ptr = 0;
}
last_packet_time = board_millis();
DEBUG_PAYLOAD((uint8_t *)ctap_req, 64);
if (ctap_req->cid == 0x0 ||
(ctap_req->cid == CID_BROADCAST && (FRAME_TYPE(ctap_req) != TYPE_INIT || ctap_req->init.cmd != CTAPHID_INIT))) {
return ctap_error(CTAP1_ERR_INVALID_CHANNEL);
}
if (board_millis() < lock && ctap_req->cid != last_req.cid &&
last_cmd_time + 100 > board_millis()) {
return ctap_error(CTAP1_ERR_CHANNEL_BUSY);
}
if (FRAME_TYPE(ctap_req) == TYPE_INIT) {
if (MSG_LEN(ctap_req) > CTAP_MAX_PACKET_SIZE) {
return ctap_error(CTAP1_ERR_INVALID_LEN);
}
if (msg_packet.len > 0 && last_cmd_time + 100 > board_millis() &&
ctap_req->init.cmd != CTAPHID_INIT) {
if (last_req.cid != ctap_req->cid) { //We are in a transaction
return ctap_error(CTAP1_ERR_CHANNEL_BUSY);
}
else {
return ctap_error(CTAP1_ERR_INVALID_SEQ);
}
}
printf("command %x\n", FRAME_CMD(ctap_req));
printf("len %d\n", MSG_LEN(ctap_req));
msg_packet.len = msg_packet.current_len = 0;
if (MSG_LEN(ctap_req) > 64 - 7) {
msg_packet.len = MSG_LEN(ctap_req);
memcpy(msg_packet.data + msg_packet.current_len, ctap_req->init.data, 64 - 7);
msg_packet.current_len += 64 - 7;
}
memcpy(&last_req, ctap_req, sizeof(CTAPHID_FRAME));
last_cmd = ctap_req->init.cmd;
last_seq = 0;
last_cmd_time = board_millis();
}
else {
if (msg_packet.len == 0) { //Received a cont with a prior init pkt
return 0;
}
if (last_seq != ctap_req->cont.seq) {
return ctap_error(CTAP1_ERR_INVALID_SEQ);
}
if (last_req.cid == ctap_req->cid) {
memcpy(msg_packet.data + msg_packet.current_len, ctap_req->cont.data,
MIN(64 - 5, msg_packet.len - msg_packet.current_len));
msg_packet.current_len += MIN(64 - 5, msg_packet.len - msg_packet.current_len);
memcpy(&last_req, ctap_req, sizeof(CTAPHID_FRAME));
last_seq++;
}
else if (last_cmd_time + 100 > board_millis()) {
return ctap_error(CTAP1_ERR_CHANNEL_BUSY);
}
}
if (ctap_req->init.cmd == CTAPHID_INIT) {
card_exit();
hid_tx[ITF_HID_CTAP].r_ptr = hid_tx[ITF_HID_CTAP].w_ptr = 0;
init_fido();
CTAPHID_INIT_REQ *req = (CTAPHID_INIT_REQ *) ctap_req->init.data;
CTAPHID_INIT_RESP *resp = (CTAPHID_INIT_RESP *) ctap_resp->init.data;
memcpy(resp->nonce, req->nonce, sizeof(resp->nonce));
resp->cid = 0x01000000;
resp->versionInterface = CTAPHID_IF_VERSION;
resp->versionMajor = get_version_major ? get_version_major() : PICO_KEYS_SDK_VERSION_MAJOR;
resp->versionMinor = get_version_minor ? get_version_minor() : PICO_KEYS_SDK_VERSION_MINOR;
resp->capFlags = CAPFLAG_WINK | CAPFLAG_CBOR;
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = CTAPHID_INIT;
ctap_resp->init.bcntl = 17;
ctap_resp->init.bcnth = 0;
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if (ctap_req->init.cmd == CTAPHID_WINK) {
if (MSG_LEN(ctap_req) != 0) {
return ctap_error(CTAP1_ERR_INVALID_LEN);
}
last_packet_time = 0;
memcpy(ctap_resp, ctap_req, sizeof(CTAPHID_FRAME));
#ifndef ENABLE_EMULATION
sleep_ms(1000); //For blinking the device during 1 seg
#endif
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
msg_packet.len = msg_packet.current_len = 0;
}
else if ((last_cmd == CTAPHID_PING || last_cmd == CTAPHID_SYNC) &&
(msg_packet.len == 0 ||
(msg_packet.len == msg_packet.current_len && msg_packet.len > 0))) {
if (msg_packet.current_len == msg_packet.len && msg_packet.len > 0) {
memcpy(ctap_resp->init.data, msg_packet.data, msg_packet.len);
driver_exec_finished_hid(msg_packet.len);
}
else {
memcpy(ctap_resp->init.data, ctap_req->init.data, MSG_LEN(ctap_req));
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = last_cmd;
ctap_resp->init.bcnth = MSG_LEN(ctap_req) >> 8;
ctap_resp->init.bcntl = MSG_LEN(ctap_req) & 0xff;
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
}
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if (ctap_req->init.cmd == CTAPHID_LOCK) {
if (MSG_LEN(ctap_req) != 1) {
return ctap_error(CTAP1_ERR_INVALID_LEN);
}
if (ctap_req->init.data[0] > 10) {
return ctap_error(CTAP1_ERR_INVALID_PARAMETER);
}
lock = board_millis() + ctap_req->init.data[0] * 1000;
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = ctap_req->init.cmd;
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if (ctap_req->init.cmd == CTAPHID_UUID) {
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = ctap_req->init.cmd;
memcpy(ctap_resp->init.data, pico_serial.id, sizeof(pico_serial.id));
ctap_resp->init.bcntl = 16;
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if (ctap_req->init.cmd == CTAPHID_VERSION) {
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = ctap_req->init.cmd;
ctap_resp->init.data[0] = PICO_KEYS_SDK_VERSION_MAJOR;
ctap_resp->init.data[1] = PICO_KEYS_SDK_VERSION_MINOR;
ctap_resp->init.bcntl = 4;
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if (ctap_req->init.cmd == CTAPHID_ADMIN) {
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.cmd = ctap_req->init.cmd;
if (ctap_req->init.data[0] == 0x80) { // Status
memcpy(ctap_resp->init.data, "\x00\xff\xff\xff\x00", 5);
ctap_resp->init.bcntl = 5;
}
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)ctap_resp, 64);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if ((last_cmd == CTAPHID_MSG || last_cmd == CTAPHID_OTP) &&
(msg_packet.len == 0 ||
(msg_packet.len == msg_packet.current_len && msg_packet.len > 0))) {
if (last_cmd == CTAPHID_OTP) {
is_nitrokey = true;
select_app(fido_aid + 1, fido_aid[0]);
}
else {
select_app(u2f_aid + 1, u2f_aid[0]);
}
//if (thread_type != 1)
#ifndef ENABLE_EMULATION
#endif
thread_type = 1;
if (msg_packet.current_len == msg_packet.len && msg_packet.len > 0) {
apdu_sent = apdu_process(ITF_HID_CTAP, msg_packet.data, msg_packet.len);
}
else {
apdu_sent = apdu_process(ITF_HID_CTAP, ctap_req->init.data, MSG_LEN(ctap_req));
}
DEBUG_PAYLOAD(apdu.data, (int) apdu.nc);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
}
else if ((last_cmd == CTAPHID_CBOR ||
last_cmd >= CTAPHID_VENDOR_FIRST) &&
(msg_packet.len == 0 ||
(msg_packet.len == msg_packet.current_len && msg_packet.len > 0))) {
thread_type = 2;
select_app(fido_aid + 1, fido_aid[0]);
if (msg_packet.current_len == msg_packet.len && msg_packet.len > 0) {
apdu_sent = cbor_process(last_cmd, msg_packet.data, msg_packet.len);
}
else {
apdu_sent = cbor_process(last_cmd, ctap_req->init.data, MSG_LEN(ctap_req));
}
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
if (apdu_sent < 0) {
return ctap_error((uint8_t)(-apdu_sent));
}
send_keepalive();
}
else if (ctap_req->init.cmd == CTAPHID_CANCEL) {
ctap_error(0x2D);
msg_packet.len = msg_packet.current_len = 0;
last_packet_time = 0;
cancel_button = true;
}
else {
if (msg_packet.len == 0) {
return ctap_error(CTAP1_ERR_INVALID_CMD);
}
}
// echo back anything we received from host
//tud_hid_report(0, buffer, bufsize);
//printf("END\n");
if (apdu_sent > 0) {
if (apdu_sent == 1) {
card_start(ITF_HID, apdu_thread);
}
else if (apdu_sent == 2) {
card_start(ITF_HID, cbor_thread);
}
usb_send_event(EV_CMD_AVAILABLE);
}
}
return apdu_sent;
}
void send_keepalive() {
CTAPHID_FRAME *resp = (CTAPHID_FRAME *) (hid_tx[ITF_HID_CTAP].buffer + sizeof(hid_tx[ITF_HID_CTAP].buffer) - 64);
//memset(ctap_resp, 0, sizeof(CTAPHID_FRAME));
resp->cid = ctap_req->cid;
resp->init.cmd = CTAPHID_KEEPALIVE;
resp->init.bcntl = 1;
resp->init.data[0] = is_req_button_pending() ? 2 : 1;
//send_buffer_size[ITF_HID_CTAP] = 0;
driver_write_hid(ITF_HID_CTAP, (const uint8_t *)resp, 64);
}
void driver_exec_finished_hid(uint16_t size_next) {
if (size_next > 0) {
if (thread_type == 2 && apdu.sw != 0) {
ctap_error(apdu.sw & 0xff);
}
else {
if (is_nitrokey) {
memmove(apdu.rdata + 2, apdu.rdata, size_next - 2);
apdu.rdata[0] = apdu.sw >> 8;
apdu.rdata[1] = apdu.sw & 0xff;
}
driver_exec_finished_cont_hid(ITF_HID_CTAP, size_next, 7);
}
}
apdu.sw = 0;
}
void driver_exec_finished_cont_hid(uint8_t itf, uint16_t size_next, uint16_t offset) {
offset -= 7;
ctap_resp = (CTAPHID_FRAME *) (hid_tx[itf].buffer + offset);
ctap_resp->cid = ctap_req->cid;
ctap_resp->init.bcnth = size_next >> 8;
ctap_resp->init.bcntl = size_next & 0xff;
send_buffer_size[itf] = size_next;
ctap_resp->init.cmd = last_cmd;
if (hid_write_offset(size_next+7, offset) > 0) {
//ctap_resp = (CTAPHID_FRAME *) ((uint8_t *) ctap_resp + 64 - 5);
//send_buffer_size[ITF_HID_CTAP] -= MIN(64 - 7, send_buffer_size[ITF_HID_CTAP]);
}
}
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