116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* Copyright (C) 2018 SoloKeys, Inc. <https://solokeys.com/>
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*
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* This file is part of Solo.
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*
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* Solo is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Solo is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Solo. If not, see <https://www.gnu.org/licenses/>
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*
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* This code is available under licenses for commercial use.
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* Please contact SoloKeys for more information.
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*/
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#ifndef _CTAPHID_H_H
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#define _CTAPHID_H_H
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#include "device.h"
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#include "ctap_errors.h"
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#define TYPE_INIT 0x80
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#define TYPE_CONT 0x00
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#define CTAPHID_PING (TYPE_INIT | 0x01)
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#define CTAPHID_MSG (TYPE_INIT | 0x03)
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#define CTAPHID_LOCK (TYPE_INIT | 0x04)
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#define CTAPHID_INIT (TYPE_INIT | 0x06)
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#define CTAPHID_WINK (TYPE_INIT | 0x08)
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#define CTAPHID_CBOR (TYPE_INIT | 0x10)
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#define CTAPHID_CANCEL (TYPE_INIT | 0x11)
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#define CTAPHID_ERROR (TYPE_INIT | 0x3f)
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#define CTAPHID_KEEPALIVE (TYPE_INIT | 0x3b)
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// Custom commands between 0x40-0x7f
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#define CTAPHID_BOOT (TYPE_INIT | 0x50)
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#define CTAPHID_ENTERBOOT (TYPE_INIT | 0x51)
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#define CTAPHID_ENTERSTBOOT (TYPE_INIT | 0x52)
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#define CTAPHID_GETRNG (TYPE_INIT | 0x60)
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#define ERR_INVALID_CMD 0x01
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#define ERR_INVALID_PAR 0x02
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#define ERR_INVALID_SEQ 0x04
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#define ERR_MSG_TIMEOUT 0x05
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#define ERR_CHANNEL_BUSY 0x06
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#define CTAPHID_PROTOCOL_VERSION 2
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#define CTAPHID_STATUS_IDLE 0
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#define CTAPHID_STATUS_PROCESSING 1
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#define CTAPHID_STATUS_UPNEEDED 2
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#define CTAPHID_INIT_PAYLOAD_SIZE (HID_MESSAGE_SIZE-7)
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#define CTAPHID_CONT_PAYLOAD_SIZE (HID_MESSAGE_SIZE-5)
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#define CTAPHID_BROADCAST_CID 0xffffffff
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#define CTAPHID_BUFFER_SIZE 7609
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#define CAPABILITY_WINK 0x01
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#define CAPABILITY_LOCK 0x02
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#define CAPABILITY_CBOR 0x04
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#define CAPABILITY_NMSG 0x08
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#define CTAP_CAPABILITIES (CAPABILITY_WINK | CAPABILITY_CBOR)
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typedef struct
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{
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uint32_t cid;
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union{
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struct{
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uint8_t cmd;
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uint8_t bcnth;
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uint8_t bcntl;
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uint8_t payload[CTAPHID_INIT_PAYLOAD_SIZE];
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} init;
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struct{
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uint8_t seq;
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uint8_t payload[CTAPHID_CONT_PAYLOAD_SIZE];
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} cont;
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} pkt;
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} CTAPHID_PACKET;
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typedef struct
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{
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uint8_t nonce[8];
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uint32_t cid;
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uint8_t protocol_version;
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uint8_t version_major;
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uint8_t version_minor;
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uint8_t build_version;
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uint8_t capabilities;
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} __attribute__((packed)) CTAPHID_INIT_RESPONSE;
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void ctaphid_init();
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uint8_t ctaphid_handle_packet(uint8_t * pkt_raw);
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void ctaphid_check_timeouts();
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void ctaphid_update_status(int8_t status);
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#define ctaphid_packet_len(pkt) ((uint16_t)((pkt)->pkt.init.bcnth << 8) | ((pkt)->pkt.init.bcntl))
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#endif
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