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Code Issues Releases Wiki Activity
a414a9ed1a
hashcat/src/rp.c
philsmd 5b0e621511
prevent further integer overflows in rp.c
2022-03-20 11:07:25 +01:00

1154 lines
31 KiB
C
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/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#include "common.h"
#include "types.h"
#include "memory.h"
#include "convert.h"
#include "event.h"
#include "shared.h"
#include "filehandling.h"
#include "rp.h"
#include "rp_cpu.h"
static const char grp_op_nop[] =
{
RULE_OP_MANGLE_LREST,
RULE_OP_MANGLE_UREST,
RULE_OP_MANGLE_LREST_UFIRST,
RULE_OP_MANGLE_UREST_LFIRST,
RULE_OP_MANGLE_TREST,
RULE_OP_MANGLE_REVERSE,
RULE_OP_MANGLE_DUPEWORD,
RULE_OP_MANGLE_REFLECT,
RULE_OP_MANGLE_DELETE_FIRST,
RULE_OP_MANGLE_DELETE_LAST,
RULE_OP_MANGLE_ROTATE_LEFT,
RULE_OP_MANGLE_ROTATE_RIGHT,
RULE_OP_MANGLE_SWITCH_FIRST,
RULE_OP_MANGLE_SWITCH_LAST,
RULE_OP_MANGLE_DUPECHAR_ALL,
RULE_OP_MANGLE_TITLE,
};
static const char grp_op_pos_p0[] =
{
RULE_OP_MANGLE_TOGGLE_AT,
RULE_OP_MANGLE_DELETE_AT,
RULE_OP_MANGLE_TRUNCATE_AT,
RULE_OP_MANGLE_CHR_INCR,
RULE_OP_MANGLE_CHR_DECR,
RULE_OP_MANGLE_CHR_SHIFTL,
RULE_OP_MANGLE_CHR_SHIFTR,
RULE_OP_MANGLE_REPLACE_NP1,
RULE_OP_MANGLE_REPLACE_NM1
};
static const char grp_op_pos_p1[] =
{
RULE_OP_MANGLE_DUPEWORD_TIMES,
RULE_OP_MANGLE_DUPECHAR_FIRST,
RULE_OP_MANGLE_DUPECHAR_LAST,
RULE_OP_MANGLE_DUPEBLOCK_FIRST,
RULE_OP_MANGLE_DUPEBLOCK_LAST
};
static const char grp_op_chr[] =
{
RULE_OP_MANGLE_APPEND,
RULE_OP_MANGLE_PREPEND,
RULE_OP_MANGLE_PURGECHAR,
RULE_OP_MANGLE_TITLE_SEP
};
static const char grp_op_chr_chr[] =
{
RULE_OP_MANGLE_REPLACE
};
static const char grp_op_pos_chr[] =
{
RULE_OP_MANGLE_INSERT,
RULE_OP_MANGLE_OVERSTRIKE,
RULE_OP_MANGLE_TOGGLE_AT_SEP
};
static const char grp_op_pos_pos0[] =
{
RULE_OP_MANGLE_SWITCH_AT
};
static const char grp_op_pos_pos1[] =
{
RULE_OP_MANGLE_EXTRACT,
RULE_OP_MANGLE_OMIT
};
static const char grp_pos[] =
{
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B'
};
bool class_num (const u8 c)
{
return ((c >= '0') && (c <= '9'));
}
bool class_lower (const u8 c)
{
return ((c >= 'a') && (c <= 'z'));
}
bool class_upper (const u8 c)
{
return ((c >= 'A') && (c <= 'Z'));
}
bool class_alpha (const u8 c)
{
return (class_lower (c) || class_upper (c));
}
int conv_ctoi (const u8 c)
{
if (class_num (c)) return c - '0';
if (class_upper (c)) return c - 'A' + 10;
return -1;
}
int conv_itoc (const u8 c)
{
if (c < 10) return c + '0';
if (c < 37) return c + 'A' - 10;
return -1;
}
int generate_random_rule (char rule_buf[RP_RULE_SIZE], const u32 rp_gen_func_min, const u32 rp_gen_func_max, const rp_gen_ops_t *rp_gen_ops)
{
// generate them
const u32 rp_gen_num = get_random_num (rp_gen_func_min, rp_gen_func_max);
u32 rule_pos = 0;
for (u32 j = 0; j < rp_gen_num; j++)
{
u32 r = 0;
u32 p1 = 0;
u32 p2 = 0;
const int group_num = get_random_num (0, rp_gen_ops->grp_op_alias_cnt);
const int group_num_alias = rp_gen_ops->grp_op_alias_buf[group_num];
switch (group_num_alias)
{
case 0:
r = get_random_num (0, rp_gen_ops->grp_op_nop_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_nop_selection[r];
break;
case 1:
r = get_random_num (0, rp_gen_ops->grp_op_pos_p0_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_pos_p0_selection[r];
p1 = get_random_num (0, sizeof (grp_pos));
rule_buf[rule_pos++] = grp_pos[p1];
break;
case 2:
r = get_random_num (0, rp_gen_ops->grp_op_pos_p1_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_pos_p1_selection[r];
p1 = get_random_num (1, 6);
rule_buf[rule_pos++] = grp_pos[p1];
break;
case 3:
r = get_random_num (0, rp_gen_ops->grp_op_chr_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_chr_selection[r];
p1 = get_random_num (0x20, 0x7e);
rule_buf[rule_pos++] = (char) p1;
break;
case 4:
r = get_random_num (0, rp_gen_ops->grp_op_chr_chr_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_chr_chr_selection[r];
p1 = get_random_num (0x20, 0x7e);
rule_buf[rule_pos++] = (char) p1;
p2 = get_random_num (0x20, 0x7e);
while (p1 == p2)
p2 = get_random_num (0x20, 0x7e);
rule_buf[rule_pos++] = (char) p2;
break;
case 5:
r = get_random_num (0, rp_gen_ops->grp_op_pos_chr_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_pos_chr_selection[r];
p1 = get_random_num (0, sizeof (grp_pos));
rule_buf[rule_pos++] = grp_pos[p1];
p2 = get_random_num (0x20, 0x7e);
rule_buf[rule_pos++] = (char) p2;
break;
case 6:
r = get_random_num (0, rp_gen_ops->grp_op_pos_pos0_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_pos_pos0_selection[r];
p1 = get_random_num (0, sizeof (grp_pos));
rule_buf[rule_pos++] = grp_pos[p1];
p2 = get_random_num (0, sizeof (grp_pos));
while (p1 == p2)
p2 = get_random_num (0, sizeof (grp_pos));
rule_buf[rule_pos++] = grp_pos[p2];
break;
case 7:
r = get_random_num (0, rp_gen_ops->grp_op_pos_pos1_cnt);
rule_buf[rule_pos++] = rp_gen_ops->grp_op_pos_pos1_selection[r];
p1 = get_random_num (0, sizeof (grp_pos));
rule_buf[rule_pos++] = grp_pos[p1];
p2 = get_random_num (1, sizeof (grp_pos));
while (p1 == p2)
p2 = get_random_num (1, sizeof (grp_pos));
rule_buf[rule_pos++] = grp_pos[p2];
break;
}
}
return (rule_pos);
}
#define INCR_POS if (++rule_pos == rule_len) return (-1)
#define SET_NAME(rule,val) (rule)->cmds[rule_cnt] = ((val) & 0xff) << 0
#define SET_P0(rule,val) do { INCR_POS; if (is_hex_notation (rule_buf, rule_len, rule_pos) == true) { (rule)->cmds[rule_cnt] |= (hex_convert (rule_buf[rule_pos + 3] & 0xff) << 8) | (hex_convert (rule_buf[rule_pos + 2] & 0xff) << 12); rule_pos += 3; } else { (rule)->cmds[rule_cnt] |= ((val) & 0xff) << 8; } } while(0)
#define SET_P1(rule,val) do { INCR_POS; if (is_hex_notation (rule_buf, rule_len, rule_pos) == true) { (rule)->cmds[rule_cnt] |= (hex_convert (rule_buf[rule_pos + 3] & 0xff) << 16) | (hex_convert (rule_buf[rule_pos + 2] & 0xff) << 20); rule_pos += 3; } else { (rule)->cmds[rule_cnt] |= ((val) & 0xff) << 16; } } while(0)
#define GET_NAME(rule) rule_cmd = (((rule)->cmds[rule_cnt] >> 0) & 0xff)
#define GET_P0(rule) INCR_POS; rule_buf[rule_pos] = (((rule)->cmds[rule_cnt] >> 8) & 0xff)
#define GET_P1(rule) INCR_POS; rule_buf[rule_pos] = (((rule)->cmds[rule_cnt] >> 16) & 0xff)
#define SET_P0_CONV(rule,val) INCR_POS; (rule)->cmds[rule_cnt] |= ((conv_ctoi (val)) & 0xff) << 8
#define SET_P1_CONV(rule,val) INCR_POS; (rule)->cmds[rule_cnt] |= ((conv_ctoi (val)) & 0xff) << 16
#define GET_P0_CONV(rule) INCR_POS; rule_buf[rule_pos] = (char) conv_itoc (((rule)->cmds[rule_cnt] >> 8) & 0xff)
#define GET_P1_CONV(rule) INCR_POS; rule_buf[rule_pos] = (char) conv_itoc (((rule)->cmds[rule_cnt] >> 16) & 0xff)
bool is_hex_notation (const char *rule_buf, u32 rule_len, u32 rule_pos)
{
if ((rule_pos + 4) > rule_len) return false;
if (rule_buf[rule_pos + 0] != '\\') return false;
if (rule_buf[rule_pos + 1] != 'x') return false;
if (is_valid_hex_char (rule_buf[rule_pos + 2]) == false) return false;
if (is_valid_hex_char (rule_buf[rule_pos + 3]) == false) return false;
return true;
}
int cpu_rule_to_kernel_rule (char *rule_buf, u32 rule_len, kernel_rule_t *rule)
{
u32 rule_pos;
u32 rule_cnt;
for (rule_pos = 0, rule_cnt = 0; rule_pos < rule_len && rule_cnt < MAX_KERNEL_RULES; rule_pos++, rule_cnt++)
{
switch (rule_buf[rule_pos])
{
case ' ':
rule_cnt--;
break;
case RULE_OP_MANGLE_NOOP:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_LREST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_UREST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_LREST_UFIRST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_UREST_LFIRST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TREST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TOGGLE_AT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_REVERSE:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DUPEWORD:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DUPEWORD_TIMES:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_REFLECT:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_ROTATE_LEFT:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_ROTATE_RIGHT:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_APPEND:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_PREPEND:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DELETE_FIRST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DELETE_LAST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DELETE_AT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_EXTRACT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
SET_P1_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_OMIT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
SET_P1_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_INSERT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
SET_P1 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_OVERSTRIKE:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
SET_P1 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TRUNCATE_AT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_REPLACE:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0 (rule, rule_buf[rule_pos]);
SET_P1 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_PURGECHAR:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TOGGLECASE_REC:
return -1;
case RULE_OP_MANGLE_DUPECHAR_FIRST:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DUPECHAR_LAST:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DUPECHAR_ALL:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_SWITCH_FIRST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_SWITCH_LAST:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_SWITCH_AT:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
SET_P1_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_CHR_SHIFTL:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_CHR_SHIFTR:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_CHR_INCR:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_CHR_DECR:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_REPLACE_NP1:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_REPLACE_NM1:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DUPEBLOCK_FIRST:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_DUPEBLOCK_LAST:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TITLE:
SET_NAME (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TITLE_SEP:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0 (rule, rule_buf[rule_pos]);
break;
case RULE_OP_MANGLE_TOGGLE_AT_SEP:
SET_NAME (rule, rule_buf[rule_pos]);
SET_P0_CONV (rule, rule_buf[rule_pos]);
SET_P1 (rule, rule_buf[rule_pos]);
break;
default:
return -1;
}
}
if (rule_pos < rule_len) return -1;
return 0;
}
int kernel_rule_to_cpu_rule (char *rule_buf, kernel_rule_t *rule)
{
u32 rule_cnt;
u32 rule_pos;
u32 rule_len = HCBUFSIZ_LARGE - 1; // maximum possible len
for (rule_cnt = 0, rule_pos = 0; rule_pos < rule_len && rule_cnt < MAX_KERNEL_RULES; rule_pos++, rule_cnt++)
{
char rule_cmd;
GET_NAME (rule);
if (rule_cnt > 0) rule_buf[rule_pos++] = ' ';
switch (rule_cmd)
{
case RULE_OP_MANGLE_NOOP:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_LREST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_UREST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_LREST_UFIRST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_UREST_LFIRST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_TREST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_TOGGLE_AT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_REVERSE:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_DUPEWORD:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_DUPEWORD_TIMES:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_REFLECT:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_ROTATE_LEFT:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_ROTATE_RIGHT:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_APPEND:
rule_buf[rule_pos] = rule_cmd;
GET_P0 (rule);
break;
case RULE_OP_MANGLE_PREPEND:
rule_buf[rule_pos] = rule_cmd;
GET_P0 (rule);
break;
case RULE_OP_MANGLE_DELETE_FIRST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_DELETE_LAST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_DELETE_AT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_EXTRACT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
GET_P1_CONV (rule);
break;
case RULE_OP_MANGLE_OMIT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
GET_P1_CONV (rule);
break;
case RULE_OP_MANGLE_INSERT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
GET_P1 (rule);
break;
case RULE_OP_MANGLE_OVERSTRIKE:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
GET_P1 (rule);
break;
case RULE_OP_MANGLE_TRUNCATE_AT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_REPLACE:
rule_buf[rule_pos] = rule_cmd;
GET_P0 (rule);
GET_P1 (rule);
break;
case RULE_OP_MANGLE_PURGECHAR:
rule_buf[rule_pos] = rule_cmd;
GET_P0 (rule);
break;
case RULE_OP_MANGLE_TOGGLECASE_REC:
return -1;
case RULE_OP_MANGLE_DUPECHAR_FIRST:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_DUPECHAR_LAST:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_DUPECHAR_ALL:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_SWITCH_FIRST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_SWITCH_LAST:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_SWITCH_AT:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
GET_P1_CONV (rule);
break;
case RULE_OP_MANGLE_CHR_SHIFTL:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_CHR_SHIFTR:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_CHR_INCR:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_CHR_DECR:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_REPLACE_NP1:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_REPLACE_NM1:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_DUPEBLOCK_FIRST:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_DUPEBLOCK_LAST:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
break;
case RULE_OP_MANGLE_TITLE:
rule_buf[rule_pos] = rule_cmd;
break;
case RULE_OP_MANGLE_TITLE_SEP:
rule_buf[rule_pos] = rule_cmd;
GET_P0 (rule);
break;
case RULE_OP_MANGLE_TOGGLE_AT_SEP:
rule_buf[rule_pos] = rule_cmd;
GET_P0_CONV (rule);
GET_P1 (rule);
break;
case 0:
if (rule_pos == 0) return -1;
return rule_pos - 1;
default:
return -1;
}
}
return rule_pos;
}
bool kernel_rules_has_noop (const kernel_rule_t *kernel_rules_buf, const u32 kernel_rules_cnt)
{
for (u32 kernel_rules_pos = 0; kernel_rules_pos < kernel_rules_cnt; kernel_rules_pos++)
{
if (kernel_rules_buf[kernel_rules_pos].cmds[0] != RULE_OP_MANGLE_NOOP) continue;
if (kernel_rules_buf[kernel_rules_pos].cmds[1] != 0) continue;
return true;
}
return false;
}
int kernel_rules_load (hashcat_ctx_t *hashcat_ctx, kernel_rule_t **out_buf, u32 *out_cnt)
{
const user_options_t *user_options = hashcat_ctx->user_options;
/**
* load rules
*/
u32 *all_kernel_rules_cnt = NULL;
kernel_rule_t **all_kernel_rules_buf = NULL;
if (user_options->rp_files_cnt)
{
all_kernel_rules_cnt = (u32 *) hccalloc (user_options->rp_files_cnt, sizeof (u32));
all_kernel_rules_buf = (kernel_rule_t **) hccalloc (user_options->rp_files_cnt, sizeof (kernel_rule_t *));
}
char *rule_buf = (char *) hcmalloc (HCBUFSIZ_LARGE);
u32 rule_len = 0;
for (u32 i = 0; i < user_options->rp_files_cnt; i++)
{
u32 kernel_rules_avail = 0;
u32 kernel_rules_cnt = 0;
kernel_rule_t *kernel_rules_buf = NULL;
char *rp_file = user_options->rp_files[i];
HCFILE fp;
u32 rule_line = 0;
if (hc_fopen (&fp, rp_file, "rb") == false)
{
event_log_error (hashcat_ctx, "%s: %s", rp_file, strerror (errno));
hcfree (all_kernel_rules_cnt);
hcfree (all_kernel_rules_buf);
hcfree (rule_buf);
return -1;
}
while (!hc_feof (&fp))
{
rule_len = (u32) fgetl (&fp, rule_buf, HCBUFSIZ_LARGE);
if (rule_line == (u32) -1)
{
event_log_error (hashcat_ctx, "Unsupported number of lines in rule file %s.", rp_file);
hcfree (all_kernel_rules_cnt);
hcfree (all_kernel_rules_buf);
hcfree (rule_buf);
return -1;
}
rule_line++;
if (rule_len == 0) continue;
if (rule_buf[0] == '#') continue;
if (kernel_rules_avail == kernel_rules_cnt)
{
kernel_rules_buf = (kernel_rule_t *) hcrealloc (kernel_rules_buf, kernel_rules_avail * sizeof (kernel_rule_t), INCR_RULES * sizeof (kernel_rule_t));
const u32 kernel_rules_avail_old = kernel_rules_avail;
kernel_rules_avail += INCR_RULES;
if (kernel_rules_avail < kernel_rules_avail_old) // u32 overflow
{
event_log_error (hashcat_ctx, "Unsupported number of rules in rule file %s.", rp_file);
hcfree (all_kernel_rules_cnt);
hcfree (all_kernel_rules_buf);
hcfree (rule_buf);
return -1;
}
}
char in[RP_PASSWORD_SIZE];
char out[RP_PASSWORD_SIZE];
memset (in, 0, sizeof (in));
memset (out, 0, sizeof (out));
int result = _old_apply_rule (rule_buf, rule_len, in, 1, out);
if (result == -1)
{
event_log_warning (hashcat_ctx, "Skipping invalid or unsupported rule in file %s on line %u: %s", rp_file, rule_line, rule_buf);
continue;
}
if (cpu_rule_to_kernel_rule (rule_buf, rule_len, &kernel_rules_buf[kernel_rules_cnt]) == -1)
{
event_log_warning (hashcat_ctx, "Cannot convert rule for use on OpenCL device in file %s on line %u: %s", rp_file, rule_line, rule_buf);
memset (&kernel_rules_buf[kernel_rules_cnt], 0, sizeof (kernel_rule_t)); // needs to be cleared otherwise we could have some remaining data
continue;
}
if (kernel_rules_cnt == (u32) -1)
{
event_log_error (hashcat_ctx, "Unsupported number of rules in rule file %s.", rp_file);
hcfree (all_kernel_rules_cnt);
hcfree (all_kernel_rules_buf);
hcfree (rule_buf);
return -1;
}
kernel_rules_cnt++;
}
hc_fclose (&fp);
all_kernel_rules_cnt[i] = kernel_rules_cnt;
all_kernel_rules_buf[i] = kernel_rules_buf;
}
hcfree (rule_buf);
/**
* merge rules
*/
u32 kernel_rules_cnt = 1;
u32 *repeats = (u32 *) hccalloc (user_options->rp_files_cnt + 1, sizeof (u32));
repeats[0] = kernel_rules_cnt;
for (u32 i = 0; i < user_options->rp_files_cnt; i++)
{
const u32 kernel_rules_cnt_old = kernel_rules_cnt;
kernel_rules_cnt *= all_kernel_rules_cnt[i];
if (kernel_rules_cnt < kernel_rules_cnt_old) // u32 overflow ?
{
if (all_kernel_rules_cnt[i] > 0) // at least one "valid" rule
{
event_log_error (hashcat_ctx, "Unsupported number of rules used in rule chaining.");
hcfree (all_kernel_rules_cnt);
hcfree (all_kernel_rules_buf);
hcfree (rule_buf);
hcfree (repeats);
return -1;
}
}
repeats[i + 1] = kernel_rules_cnt;
}
kernel_rule_t *kernel_rules_buf = (kernel_rule_t *) hccalloc (kernel_rules_cnt, sizeof (kernel_rule_t));
for (u32 i = 0; i < kernel_rules_cnt; i++)
{
u32 out_pos = 0;
kernel_rule_t *out = &kernel_rules_buf[i];
for (u32 j = 0; j < user_options->rp_files_cnt; j++)
{
u32 in_off = (i / repeats[j]) % all_kernel_rules_cnt[j];
u32 in_pos;
kernel_rule_t *in = &all_kernel_rules_buf[j][in_off];
for (in_pos = 0; in->cmds[in_pos]; in_pos++, out_pos++)
{
if (out_pos == RULES_MAX - 1)
{
// event_log_warning (hashcat_ctx, "Truncated chaining of rules %d and %d - maximum functions per rule exceeded.", i, in_off);
break;
}
out->cmds[out_pos] = in->cmds[in_pos];
}
}
}
hcfree (repeats);
hcfree (all_kernel_rules_cnt);
hcfree (all_kernel_rules_buf);
if (kernel_rules_cnt == 0)
{
event_log_error (hashcat_ctx, "No valid rules left.");
hcfree (kernel_rules_buf);
return -1;
}
*out_cnt = kernel_rules_cnt;
*out_buf = kernel_rules_buf;
return 0;
}
int kernel_rules_generate (hashcat_ctx_t *hashcat_ctx, kernel_rule_t **out_buf, u32 *out_cnt, const char *rp_gen_func_selection)
{
const user_options_t *user_options = hashcat_ctx->user_options;
u32 kernel_rules_cnt = 0;
kernel_rule_t *kernel_rules_buf = (kernel_rule_t *) hccalloc (user_options->rp_gen, sizeof (kernel_rule_t));
// operator selection
rp_gen_ops_t rp_gen_ops;
rp_gen_ops.grp_op_nop_selection = hcmalloc (sizeof (grp_op_nop));
rp_gen_ops.grp_op_pos_p0_selection = hcmalloc (sizeof (grp_op_pos_p0));
rp_gen_ops.grp_op_pos_p1_selection = hcmalloc (sizeof (grp_op_pos_p1));
rp_gen_ops.grp_op_chr_selection = hcmalloc (sizeof (grp_op_chr));
rp_gen_ops.grp_op_chr_chr_selection = hcmalloc (sizeof (grp_op_chr_chr));
rp_gen_ops.grp_op_pos_chr_selection = hcmalloc (sizeof (grp_op_pos_chr));
rp_gen_ops.grp_op_pos_pos0_selection = hcmalloc (sizeof (grp_op_pos_pos0));
rp_gen_ops.grp_op_pos_pos1_selection = hcmalloc (sizeof (grp_op_pos_pos1));
rp_gen_ops.grp_op_nop_cnt = 0;
rp_gen_ops.grp_op_pos_p0_cnt = 0;
rp_gen_ops.grp_op_pos_p1_cnt = 0;
rp_gen_ops.grp_op_chr_cnt = 0;
rp_gen_ops.grp_op_chr_chr_cnt = 0;
rp_gen_ops.grp_op_pos_chr_cnt = 0;
rp_gen_ops.grp_op_pos_pos0_cnt = 0;
rp_gen_ops.grp_op_pos_pos1_cnt = 0;
rp_gen_ops.grp_op_alias_cnt = 0;
for (size_t i = 0; i < sizeof (grp_op_nop); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_nop_selection[rp_gen_ops.grp_op_nop_cnt] = grp_op_nop[i];
rp_gen_ops.grp_op_nop_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_nop[i]) == NULL) continue;
rp_gen_ops.grp_op_nop_selection[rp_gen_ops.grp_op_nop_cnt] = grp_op_nop[i];
rp_gen_ops.grp_op_nop_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_pos_p0); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_pos_p0_selection[rp_gen_ops.grp_op_pos_p0_cnt] = grp_op_nop[i];
rp_gen_ops.grp_op_pos_p0_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_pos_p0[i]) == NULL) continue;
rp_gen_ops.grp_op_pos_p0_selection[rp_gen_ops.grp_op_pos_p0_cnt] = grp_op_pos_p0[i];
rp_gen_ops.grp_op_pos_p0_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_pos_p1); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_pos_p1_selection[rp_gen_ops.grp_op_pos_p1_cnt] = grp_op_pos_p1[i];
rp_gen_ops.grp_op_pos_p1_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_pos_p1[i]) == NULL) continue;
rp_gen_ops.grp_op_pos_p1_selection[rp_gen_ops.grp_op_pos_p1_cnt] = grp_op_pos_p1[i];
rp_gen_ops.grp_op_pos_p1_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_chr); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_chr_selection[rp_gen_ops.grp_op_chr_cnt] = grp_op_chr[i];
rp_gen_ops.grp_op_chr_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_chr[i]) == NULL) continue;
rp_gen_ops.grp_op_chr_selection[rp_gen_ops.grp_op_chr_cnt] = grp_op_chr[i];
rp_gen_ops.grp_op_chr_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_chr_chr); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_chr_chr_selection[rp_gen_ops.grp_op_chr_chr_cnt] = grp_op_chr_chr[i];
rp_gen_ops.grp_op_chr_chr_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_chr_chr[i]) == NULL) continue;
rp_gen_ops.grp_op_chr_chr_selection[rp_gen_ops.grp_op_chr_chr_cnt] = grp_op_chr_chr[i];
rp_gen_ops.grp_op_chr_chr_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_pos_chr); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_pos_chr_selection[rp_gen_ops.grp_op_pos_chr_cnt] = grp_op_pos_chr[i];
rp_gen_ops.grp_op_pos_chr_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_pos_chr[i]) == NULL) continue;
rp_gen_ops.grp_op_pos_chr_selection[rp_gen_ops.grp_op_pos_chr_cnt] = grp_op_pos_chr[i];
rp_gen_ops.grp_op_pos_chr_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_pos_pos0); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_pos_pos0_selection[rp_gen_ops.grp_op_pos_pos0_cnt] = grp_op_pos_pos0[i];
rp_gen_ops.grp_op_pos_pos0_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_pos_pos0[i]) == NULL) continue;
rp_gen_ops.grp_op_pos_pos0_selection[rp_gen_ops.grp_op_pos_pos0_cnt] = grp_op_pos_pos0[i];
rp_gen_ops.grp_op_pos_pos0_cnt++;
}
}
for (size_t i = 0; i < sizeof (grp_op_pos_pos1); i++)
{
if (rp_gen_func_selection == NULL)
{
rp_gen_ops.grp_op_pos_pos1_selection[rp_gen_ops.grp_op_pos_pos1_cnt] = grp_op_pos_pos1[i];
rp_gen_ops.grp_op_pos_pos1_cnt++;
}
else
{
if (strchr (rp_gen_func_selection, grp_op_pos_pos1[i]) == NULL) continue;
rp_gen_ops.grp_op_pos_pos1_selection[rp_gen_ops.grp_op_pos_pos1_cnt] = grp_op_pos_pos1[i];
rp_gen_ops.grp_op_pos_pos1_cnt++;
}
}
if (rp_gen_ops.grp_op_nop_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 0; };
if (rp_gen_ops.grp_op_pos_p0_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 1; };
if (rp_gen_ops.grp_op_pos_p1_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 2; };
if (rp_gen_ops.grp_op_chr_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 3; };
if (rp_gen_ops.grp_op_chr_chr_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 4; };
if (rp_gen_ops.grp_op_pos_chr_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 5; };
if (rp_gen_ops.grp_op_pos_pos0_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 6; };
if (rp_gen_ops.grp_op_pos_pos1_cnt) { rp_gen_ops.grp_op_alias_buf[rp_gen_ops.grp_op_alias_cnt++] = 7; };
char *rule_buf = (char *) hcmalloc (RP_RULE_SIZE);
for (kernel_rules_cnt = 0; kernel_rules_cnt < user_options->rp_gen; kernel_rules_cnt++)
{
memset (rule_buf, 0, RP_RULE_SIZE);
const int rule_len = generate_random_rule (rule_buf, user_options->rp_gen_func_min, user_options->rp_gen_func_max, &rp_gen_ops);
if (cpu_rule_to_kernel_rule (rule_buf, rule_len, &kernel_rules_buf[kernel_rules_cnt]) == -1) continue;
}
hcfree (rule_buf);
hcfree (rp_gen_ops.grp_op_nop_selection);
hcfree (rp_gen_ops.grp_op_pos_p0_selection);
hcfree (rp_gen_ops.grp_op_pos_p1_selection);
hcfree (rp_gen_ops.grp_op_chr_selection);
hcfree (rp_gen_ops.grp_op_chr_chr_selection);
hcfree (rp_gen_ops.grp_op_pos_chr_selection);
hcfree (rp_gen_ops.grp_op_pos_pos0_selection);
hcfree (rp_gen_ops.grp_op_pos_pos1_selection);
*out_cnt = kernel_rules_cnt;
*out_buf = kernel_rules_buf;
return 0;
}
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