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trezor-firmware/tests/fido_tests/u2f-tests-hid/u2f_hid.h

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2019-09-12 09:46:35 +00:00
// Copyright 2014 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#ifndef __U2F_HID_H_INCLUDED__
#define __U2F_HID_H_INCLUDED__
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __NO_PRAGMA_PACK
#pragma pack(push, 1)
#endif
// HID frame definition
typedef struct {
uint32_t cid;
union {
uint8_t type;
struct {
uint8_t cmd;
uint8_t bcnth;
uint8_t bcntl;
uint8_t data[64 - 7];
} init;
struct {
uint8_t seq;
uint8_t data[64 - 5];
} cont;
};
} U2FHID_FRAME;
// HID frame accessors
#define TYPE_MASK 0x80
#define TYPE_INIT 0x80
#define TYPE_CONT 0x00
#define FRAME_TYPE(x) ((x).type & TYPE_MASK)
#define FRAME_SEQ(x) ((x).cont.seq & ~TYPE_MASK)
#define FRAME_CMD(x) ((x).init.cmd & ~TYPE_MASK)
#define MSG_LEN(x) ((x).init.bcnth * 256u + (x).init.bcntl)
// Commands
#define U2FHID_PING (TYPE_INIT | 1)
#define U2FHID_MSG (TYPE_INIT | 3)
#define U2FHID_LOCK (TYPE_INIT | 4)
#define U2FHID_INIT (TYPE_INIT | 6)
#define U2FHID_WINK (TYPE_INIT | 8)
#define U2FHID_SYNC (TYPE_INIT | 0x3c)
#define U2FHID_ERROR (TYPE_INIT | 0x3f)
// Errors
#define ERR_NONE 0
#define ERR_INVALID_CMD 1
#define ERR_INVALID_PAR 2
#define ERR_INVALID_LEN 3
#define ERR_INVALID_SEQ 4
#define ERR_MSG_TIMEOUT 5
#define ERR_CHANNEL_BUSY 6
#define ERR_LOCK_REQUIRED 10
#define ERR_INVALID_CID 11
#define ERR_OTHER 127
// Init command parameters
#define CID_BROADCAST -1
#define INIT_NONCE_SIZE 8
typedef struct {
uint8_t nonce[INIT_NONCE_SIZE];
uint32_t cid;
uint8_t versionInterface;
uint8_t versionMajor;
uint8_t versionMinor;
uint8_t versionBuild;
uint8_t capFlags;
} U2FHID_INIT_RESP;
#define U2FHID_IF_VERSION 2
#define CAPFLAG_WINK 0x01
#define CAPFLAG_LOCK 0x02
#ifndef __NO_PRAGMA_PACK
#pragma pack(pop)
#endif
#ifdef __cplusplus
}
#endif
#endif // __U2F_HID_H_INCLUDED__