129 lines
2.8 KiB
C
129 lines
2.8 KiB
C
#ifndef _CTAPHID_H_H
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#define _CTAPHID_H_H
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#include "usbhid.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 ERR_INVALID_CMD 0x01
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#define ERR_INVALID_PAR 0x02
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#define ERR_INVALID_LEN 0x03
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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_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 4096
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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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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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uint32_t broadcast;
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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 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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typedef struct
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{
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uint32_t cid;
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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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} __attribute__((packed)) CTAPHID_PING_RESPONSE;
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typedef struct
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{
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uint32_t cid;
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uint8_t cmd;
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uint16_t bcnt;
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} __attribute__((packed)) CTAPHID_WINK_RESPONSE;
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typedef struct
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{
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uint32_t cid;
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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 error;
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} __attribute__((packed)) CTAPHID_ERROR_RESPONSE;
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// API specific, not protocol specific //
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typedef enum
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{
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NO_RESPONSE = 0,
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CTAPHID_RESPONSE,
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U2F_RESPONSE,
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CBOR_RESPONSE,
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} CTAPHID_CODE;
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typedef struct
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{
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int status;
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} CTAPHID_STATUS;
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////////
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void ctaphid_init();
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void ctaphid_handle_packet(uint8_t * pkt_raw, CTAPHID_STATUS * stat);
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void ctaphid_dump_status(CTAPHID_STATUS * stat);
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// Must be implemented by application
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// data is HID_MESSAGE_SIZE long in bytes
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extern void ctaphid_write_block(uint8_t * data);
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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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