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- #ifndef TAG__H
- #define TAG__H
- /**
- * Copyright (C) 2011 Anders Sundman <anders@4zm.org>
- *
- * This file is part of mfterm.
- *
- * mfterm is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * mfterm is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with mfterm. If not, see <http://www.gnu.org/licenses/>.
- *
- * Parts of code used in this file are from the GNU readline library file
- * fileman.c (GPLv3). Copyright (C) 1987-2009 Free Software Foundation, Inc
- */
- #include "mifare.h"
- typedef enum {
- MF_INVALID_SIZE = 0,
- MF_1K = 1024,
- MF_4K = 4096
- } mf_size_t;
- typedef enum {
- MF_INVALID_KEY_TYPE = 0,
- MF_KEY_A = 'a',
- MF_KEY_B = 'b',
- MF_KEY_UNLOCKED = 0xff,
- } mf_key_type_t;
- // Convenience typedefs (shortening)
- typedef mifare_classic_tag mf_tag_t;
- typedef mifare_classic_block mf_block_t;
- // The active tag
- extern mf_tag_t current_tag;
- // The ACL + keys used
- extern mf_tag_t current_auth;
- // Load/Save tag or keys from file
- int load_tag(const char* fn);
- int load_auth(const char* fn);
- int save_tag(const char* fn);
- int save_auth(const char* fn);
- // Copy key data from the 'current_tag' to the 'current_auth'
- int import_auth();
- // Output tag data
- void print_tag();
- void print_tag_block_range(size_t first, size_t last);
- void print_tag_data_range(size_t byte_offset, size_t bit_offset,
- size_t byte_len, size_t bit_len);
- void print_tag_bytes(size_t first_byte, size_t last_byte);
- void print_keys(const mf_tag_t* tag, mf_size_t size);
- void print_ac(const mf_tag_t* tag);
- // Return a hex string representationon of the key
- const char* sprint_key(const uint8_t* key);
- // Parse the string and set the key. Return the key, or NULL on error.
- uint8_t* read_key(uint8_t* key, const char* str);
- // Return a string describing the tag type 1k|4k
- const char* sprint_size(mf_size_t size);
- // Set the contents of a tag to zeroes
- void clear_tag(mf_tag_t* tag);
- // Return number of blocks for size
- size_t block_count(mf_size_t size);
- // Return number of sectors for size
- size_t sector_count(mf_size_t size);
- // Return > 0 if the block is a trailer, 0 otherwise.
- int is_trailer_block(size_t block);
- // Return the sector index of the block
- size_t block_to_sector(size_t block);
- // Return the head block for the specified block
- size_t block_to_header(size_t block);
- // Return the trailer block for the specified block
- size_t block_to_trailer(size_t block);
- // Return the trailer block for the specified sector
- size_t sector_to_trailer(size_t sector);
- // Return the sector size (in blocks) that contains the block
- size_t sector_size(size_t block);
- // Extract the key for the block parameters sector of the tag and return it
- uint8_t* key_from_tag(const mf_tag_t* tag,
- mf_key_type_t key_type,
- size_t block);
- // Write key to the sector of a tag, where the sector is specified by
- // the block (anywhere in the sector).
- void key_to_tag(mf_tag_t* tag, const uint8_t* key,
- mf_key_type_t key_type, size_t block);
- /**
- * Return block index of the first block in every sector in turn on
- * repeated calls. Initialize the iterator by calling with state
- * 0. Subsequent calls should use the tag size as state. The iterator
- * returns -1 as an end marker.
- */
- int sector_header_iterator(int state);
- #endif
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