mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-20 23:36:31 +08:00
50 lines
1.9 KiB
C
50 lines
1.9 KiB
C
//-----------------------------------------------------------------------------
|
|
// Copyright (C) 2018 grauerfuchs
|
|
//
|
|
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
|
|
// at your option, any later version. See the LICENSE.txt file for the text of
|
|
// the license.
|
|
//-----------------------------------------------------------------------------
|
|
// Weigand card format packing/unpacking support functions
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef WIEGAND_FORMATUTILS_H__
|
|
#define WIEGAND_FORMATUTILS_H__
|
|
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
// Structure for packed wiegand messages
|
|
// Always align lowest value (last transmitted) bit to ordinal position 0 (lowest valued bit bottom)
|
|
typedef struct {
|
|
uint8_t Length; // Number of encoded bits in wiegand message (excluding headers and preamble)
|
|
uint32_t Top; // Bits in x<<64 positions
|
|
uint32_t Mid; // Bits in x<<32 positions
|
|
uint32_t Bot; // Lowest ordinal positions
|
|
} wiegand_message_t;
|
|
|
|
// Structure for unpacked wiegand card, like HID prox
|
|
typedef struct {
|
|
uint32_t FacilityCode;
|
|
uint64_t CardNumber;
|
|
uint32_t IssueLevel;
|
|
uint32_t OEM;
|
|
bool ParityValid; // Only valid for responses
|
|
} wiegand_card_t;
|
|
|
|
bool get_bit_by_position(wiegand_message_t *data, uint8_t pos);
|
|
bool set_bit_by_position(wiegand_message_t *data, bool value, uint8_t pos);
|
|
|
|
uint64_t get_linear_field(wiegand_message_t *data, uint8_t firstBit, uint8_t length);
|
|
bool set_linear_field(wiegand_message_t *data, uint64_t value, uint8_t firstBit, uint8_t length);
|
|
|
|
uint64_t get_nonlinear_field(wiegand_message_t *data, uint8_t numBits, uint8_t *bits);
|
|
bool set_nonlinear_field(wiegand_message_t *data, uint64_t value, uint8_t numBits, uint8_t *bits);
|
|
|
|
wiegand_message_t initialize_message_object(uint32_t top, uint32_t mid, uint32_t bot);
|
|
|
|
bool add_HID_header(wiegand_message_t *data);
|
|
|
|
#endif
|