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/* Header file for CISCO7CRACK.C - Sat Oct 19, 2002
* (C) 2002 by Davide Madrisan <davide.madrisan@google.com>
*
* This program 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 2 of the License, or (at your option) any later
* version.
*
* This program 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.
*/
/* IOS cuts passwords with length > `MAX_PLAIN_LEN' (25 in IOS 12.0(7)T)
* Note that some passwords, like OSPF authentication keys, are even shorter */
#define MAX_PLAIN_LEN 25
/* NOTE: if you increment this value you can generate passwords that are _not_
* IOS-compliant */
#define MAX_XOR_OFFSET 15
/* next directive is intended to support (at least) routers C761
with IOS(?) c760-in.r.NET3 4.2(3). They use lowercase letters in 'hex'
(i.e. 0123456789abcdef)
thanks to Fabrizio Pedracini for the info */
/* #define HEX_LOWER_SUPPORT */
#define MAX_ENCRYPTED_LEN (2+(2*MAX_PLAIN_LEN)+1)
#define min(x,y) ((x) < (y) ? (x) : (y))
/* return codes of this program ([no] errors, warnings) */
#define ERR_NONE 0x00
#define ERR_USAGE 0x01
#define ERR_INPUT_ILLEGAL_CHAR 0x02
#define ERR_INPUT_ODD_DIGITS 0x04
#define ERR_INPUT_TOO_LONG 0x08
#define OFFSET_RANDOM -1
#define OFFSET_ALL -2
#define PROGRAM "cisco7crack"
#define AUTHOR "Davide Madrisan <davide.madrisan@atlavia.it>"
#define VERSION "v2.3.4 - San Oct 19, 2002"
static const char *dec = "0123456789", *hex = "0123456789ABCDEF";
static const char magic[] = {
0x64, 0x73, 0x66, 0x64, 0x3b, 0x6b, 0x66, 0x6f,
0x41, 0x2c, 0x2e, 0x69, 0x79, 0x65, 0x77, 0x72,
0x6b, 0x6c, 0x64, 0x4a, 0x4b, 0x44, 0x48, 0x53, 0x55, 0x42
}; /* "dsfd;kfoA,.iyewrkldJKDHSUB" */
const unsigned int magic_size = sizeof(magic) / sizeof(magic[0]);
typedef enum e_bool { false = 0, true } bool;
typedef struct s_options { /* arguments passed on command line */
bool crypt;
bool decrypt;
bool quiet;
int xor_offset;
} options_list;
options_list opt;
void usage(void);
int decrypt_str(const char *passwd);
int crypt_str(const char *str2crypt, int xor_offset);
unsigned int get_entropy(void);
void cfprintf(FILE * stream, const char *fmt, ...);
#ifdef HEX_LOWER_SUPPORT
char *strtoupper(char *str);
#endif
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