mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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85e463b222
* do not read data blocks twice * store data in the emulator memory, to be prepared for standalone modes and to not allocate large buffer on stack * 9->8 bytes to store each key data in emulator memory (half_nt + nt_par_err + flag + nt_enc)
91 lines
3.3 KiB
C
91 lines
3.3 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program 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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// This program 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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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// BigBuf and functions to allocate/free parts of it.
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//-----------------------------------------------------------------------------
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#ifndef __BIGBUF_H
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#define __BIGBUF_H
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#include "common.h"
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#define MAX_FRAME_SIZE 256 // maximum allowed ISO14443 frame
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#define MAX_PARITY_SIZE ((MAX_FRAME_SIZE + 7) / 8)
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#define MAX_MIFARE_FRAME_SIZE 18 // biggest Mifare frame is answer to a read (one block = 16 Bytes) + 2 Bytes CRC
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#define MAX_MIFARE_PARITY_SIZE 3 // need 18 parity bits for the 18 Byte above. 3 Bytes are enough to store these
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#define CARD_MEMORY_SIZE 4096
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// For now we're storing FM11RF08S nonces in the upper 1k of CARD_MEMORY_SIZE
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// but we might have to allocate extra space if one day we've to support sth like a FM11RF32S
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#define CARD_MEMORY_RF08S_OFFSET 1024
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//#define DMA_BUFFER_SIZE (512 + 256)
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#define DMA_BUFFER_SIZE 512
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// 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits
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#define TOSEND_BUFFER_SIZE (9 * MAX_FRAME_SIZE + 1 + 1 + 2)
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uint8_t *BigBuf_get_addr(void);
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uint32_t BigBuf_get_size(void);
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uint8_t *BigBuf_get_EM_addr(void);
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uint16_t BigBuf_max_traceLen(void);
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uint32_t BigBuf_get_hi(void);
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void BigBuf_initialize(void);
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void BigBuf_Clear(void);
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void BigBuf_Clear_ext(bool verbose);
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void BigBuf_Clear_keep_EM(void);
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void BigBuf_Clear_EM(void);
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uint8_t *BigBuf_malloc(uint16_t);
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uint8_t *BigBuf_calloc(uint16_t);
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void BigBuf_free(void);
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void BigBuf_free_keep_EM(void);
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void BigBuf_print_status(void);
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uint32_t BigBuf_get_traceLen(void);
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void clear_trace(void);
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void set_tracing(bool enable);
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void set_tracelen(uint32_t value);
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bool get_tracing(void);
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bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, const uint8_t *parity, bool reader2tag);
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bool RAMFUNC LogTraceBits(const uint8_t *btBytes, uint16_t bitLen, uint32_t timestamp_start, uint32_t timestamp_end, bool reader2tag);
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bool LogTrace_ISO15693(const uint8_t *bytes, uint16_t len, uint32_t ts_start, uint32_t ts_end, const uint8_t *parity, bool reader2tag);
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int emlSet(const uint8_t *data, uint32_t offset, uint32_t length);
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int emlGet(uint8_t *out, uint32_t offset, uint32_t length);
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typedef struct {
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int max;
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int bit;
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uint8_t *buf;
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} tosend_t;
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tosend_t *get_tosend(void);
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void tosend_reset(void);
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void tosend_stuffbit(int b);
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typedef struct {
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uint16_t size;
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uint8_t *buf;
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} dmabuf8_t;
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typedef struct {
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uint16_t size;
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uint16_t *buf;
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} dmabuf16_t;
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dmabuf8_t *get_dma8(void);
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dmabuf16_t *get_dma16(void);
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#endif /* __BIGBUF_H */
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