solo1/fido2/ctaphid.h

103 wiersze
2.9 KiB
C

// Copyright 2019 SoloKeys Developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
#ifndef _CTAPHID_H_H
#define _CTAPHID_H_H
#include "device.h"
#include "ctap_errors.h"
#define TYPE_INIT 0x80
#define TYPE_CONT 0x00
#define CTAPHID_PING (TYPE_INIT | 0x01)
#define CTAPHID_MSG (TYPE_INIT | 0x03)
#define CTAPHID_LOCK (TYPE_INIT | 0x04)
#define CTAPHID_INIT (TYPE_INIT | 0x06)
#define CTAPHID_WINK (TYPE_INIT | 0x08)
#define CTAPHID_CBOR (TYPE_INIT | 0x10)
#define CTAPHID_CANCEL (TYPE_INIT | 0x11)
#define CTAPHID_ERROR (TYPE_INIT | 0x3f)
#define CTAPHID_KEEPALIVE (TYPE_INIT | 0x3b)
// Custom commands between 0x40-0x7f
#define CTAPHID_BOOT (TYPE_INIT | 0x50)
#define CTAPHID_ENTERBOOT (TYPE_INIT | 0x51)
#define CTAPHID_ENTERSTBOOT (TYPE_INIT | 0x52)
#define CTAPHID_GETRNG (TYPE_INIT | 0x60)
// reserved for debug, not implemented except for HACKER and DEBUG_LEVEl > 0
#define CTAPHID_PROBE (TYPE_INIT | 0x70)
#define ERR_INVALID_CMD 0x01
#define ERR_INVALID_PAR 0x02
#define ERR_INVALID_SEQ 0x04
#define ERR_MSG_TIMEOUT 0x05
#define ERR_CHANNEL_BUSY 0x06
#define CTAPHID_PROTOCOL_VERSION 2
#define CTAPHID_STATUS_IDLE 0
#define CTAPHID_STATUS_PROCESSING 1
#define CTAPHID_STATUS_UPNEEDED 2
#define CTAPHID_INIT_PAYLOAD_SIZE (HID_MESSAGE_SIZE-7)
#define CTAPHID_CONT_PAYLOAD_SIZE (HID_MESSAGE_SIZE-5)
#define CTAPHID_BROADCAST_CID 0xffffffff
#define CTAPHID_BUFFER_SIZE 7609
#define CAPABILITY_WINK 0x01
#define CAPABILITY_LOCK 0x02
#define CAPABILITY_CBOR 0x04
#define CAPABILITY_NMSG 0x08
#define CTAP_CAPABILITIES (CAPABILITY_WINK | CAPABILITY_CBOR)
typedef struct
{
uint32_t cid;
union{
struct{
uint8_t cmd;
uint8_t bcnth;
uint8_t bcntl;
uint8_t payload[CTAPHID_INIT_PAYLOAD_SIZE];
} init;
struct{
uint8_t seq;
uint8_t payload[CTAPHID_CONT_PAYLOAD_SIZE];
} cont;
} pkt;
} CTAPHID_PACKET;
typedef struct
{
uint8_t nonce[8];
uint32_t cid;
uint8_t protocol_version;
uint8_t version_major;
uint8_t version_minor;
uint8_t build_version;
uint8_t capabilities;
} __attribute__((packed)) CTAPHID_INIT_RESPONSE;
void ctaphid_init();
uint8_t ctaphid_handle_packet(uint8_t * pkt_raw);
void ctaphid_check_timeouts();
void ctaphid_update_status(int8_t status);
#define ctaphid_packet_len(pkt) ((uint16_t)((pkt)->pkt.init.bcnth << 8) | ((pkt)->pkt.init.bcntl))
#endif