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469 lines
10 KiB
469 lines
10 KiB
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "memory.h"
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#include "event.h"
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#include "convert.h"
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#include "dictstat.h"
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#include "thread.h"
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#include "rp_cpu.h"
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#include "wordlist.h"
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u32 convert_from_hex (hashcat_ctx_t *hashcat_ctx, char *line_buf, const u32 line_len)
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{
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const user_options_t *user_options = hashcat_ctx->user_options;
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if (line_len & 1) return (line_len); // not in hex
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if (user_options->hex_wordlist == true)
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{
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u32 i;
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u32 j;
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for (i = 0, j = 0; j < line_len; i += 1, j += 2)
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{
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line_buf[i] = hex_to_u8 ((const u8 *) &line_buf[j]);
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}
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memset (line_buf + i, 0, line_len - i);
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return (i);
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}
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else if (line_len >= 6) // $HEX[] = 6
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{
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if (line_buf[0] != '$') return (line_len);
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if (line_buf[1] != 'H') return (line_len);
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if (line_buf[2] != 'E') return (line_len);
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if (line_buf[3] != 'X') return (line_len);
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if (line_buf[4] != '[') return (line_len);
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if (line_buf[line_len - 1] != ']') return (line_len);
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u32 i;
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u32 j;
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for (i = 0, j = 5; j < line_len - 1; i += 1, j += 2)
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{
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line_buf[i] = hex_to_u8 ((const u8 *) &line_buf[j]);
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}
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memset (line_buf + i, 0, line_len - i);
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return (i);
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}
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return (line_len);
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}
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int load_segment (hashcat_ctx_t *hashcat_ctx, FILE *fd)
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{
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wl_data_t *wl_data = hashcat_ctx->wl_data;
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// NOTE: use (never changing) ->incr here instead of ->avail otherwise the buffer gets bigger and bigger
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wl_data->pos = 0;
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wl_data->cnt = fread (wl_data->buf, 1, wl_data->incr - 1000, fd);
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wl_data->buf[wl_data->cnt] = 0;
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if (wl_data->cnt == 0) return 0;
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if (wl_data->buf[wl_data->cnt - 1] == '\n') return 0;
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while (!feof (fd))
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{
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if (wl_data->cnt == wl_data->avail)
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{
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wl_data->buf = (char *) hcrealloc (hashcat_ctx, wl_data->buf, wl_data->avail, wl_data->incr); VERIFY_PTR (wl_data->buf);
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wl_data->avail += wl_data->incr;
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}
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const int c = fgetc (fd);
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if (c == EOF) break;
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wl_data->buf[wl_data->cnt] = (char) c;
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wl_data->cnt++;
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if (c == '\n') break;
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}
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// ensure stream ends with a newline
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if (wl_data->buf[wl_data->cnt - 1] != '\n')
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{
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wl_data->cnt++;
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wl_data->buf[wl_data->cnt - 1] = '\n';
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}
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return 0;
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}
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void get_next_word_lm (char *buf, u64 sz, u64 *len, u64 *off)
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{
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char *ptr = buf;
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for (u64 i = 0; i < sz; i++, ptr++)
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{
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if (*ptr >= 'a' && *ptr <= 'z') *ptr -= 0x20;
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if (i == 7)
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{
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*off = i;
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*len = i;
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return;
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}
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if (*ptr != '\n') continue;
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*off = i + 1;
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if ((i > 0) && (buf[i - 1] == '\r')) i--;
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*len = i;
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return;
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}
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*off = sz;
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*len = sz;
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}
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void get_next_word_uc (char *buf, u64 sz, u64 *len, u64 *off)
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{
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char *ptr = buf;
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for (u64 i = 0; i < sz; i++, ptr++)
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{
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if (*ptr >= 'a' && *ptr <= 'z') *ptr -= 0x20;
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if (*ptr != '\n') continue;
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*off = i + 1;
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if ((i > 0) && (buf[i - 1] == '\r')) i--;
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*len = i;
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return;
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}
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*off = sz;
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*len = sz;
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}
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void get_next_word_std (char *buf, u64 sz, u64 *len, u64 *off)
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{
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char *ptr = buf;
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for (u64 i = 0; i < sz; i++, ptr++)
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{
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if (*ptr != '\n') continue;
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*off = i + 1;
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if ((i > 0) && (buf[i - 1] == '\r')) i--;
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*len = i;
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return;
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}
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*off = sz;
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*len = sz;
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}
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void get_next_word (hashcat_ctx_t *hashcat_ctx, FILE *fd, char **out_buf, u32 *out_len)
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{
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user_options_t *user_options = hashcat_ctx->user_options;
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user_options_extra_t *user_options_extra = hashcat_ctx->user_options_extra;
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wl_data_t *wl_data = hashcat_ctx->wl_data;
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while (wl_data->pos < wl_data->cnt)
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{
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u64 off;
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u64 len;
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char *ptr = wl_data->buf + wl_data->pos;
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wl_data->func (ptr, wl_data->cnt - wl_data->pos, &len, &off);
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wl_data->pos += off;
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if (run_rule_engine (user_options_extra->rule_len_l, user_options->rule_buf_l))
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{
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char rule_buf_out[BLOCK_SIZE] = { 0 };
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int rule_len_out = -1;
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if (len < BLOCK_SIZE)
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{
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rule_len_out = _old_apply_rule (user_options->rule_buf_l, user_options_extra->rule_len_l, ptr, len, rule_buf_out);
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}
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if (rule_len_out < 0)
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{
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continue;
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}
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if (rule_len_out > PW_MAX)
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{
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continue;
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}
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}
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else
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{
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if (len > PW_MAX)
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{
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continue;
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}
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}
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*out_buf = ptr;
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*out_len = len;
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return;
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}
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if (feof (fd))
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{
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fprintf (stderr, "BUG feof()!!\n");
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return;
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}
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load_segment (hashcat_ctx, fd);
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get_next_word (hashcat_ctx, fd, out_buf, out_len);
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}
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void pw_add (hc_device_param_t *device_param, const u8 *pw_buf, const int pw_len)
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{
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//if (device_param->pws_cnt < device_param->kernel_power)
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//{
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pw_t *pw = (pw_t *) device_param->pws_buf + device_param->pws_cnt;
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u8 *ptr = (u8 *) pw->i;
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memcpy (ptr, pw_buf, pw_len);
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memset (ptr + pw_len, 0, sizeof (pw->i) - pw_len);
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pw->pw_len = pw_len;
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device_param->pws_cnt++;
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//}
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//else
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//{
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// fprintf (stderr, "BUG pw_add()!!\n");
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//
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// return;
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//}
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}
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u64 count_words (hashcat_ctx_t *hashcat_ctx, FILE *fd, const char *dictfile)
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{
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combinator_ctx_t *combinator_ctx = hashcat_ctx->combinator_ctx;
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straight_ctx_t *straight_ctx = hashcat_ctx->straight_ctx;
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user_options_extra_t *user_options_extra = hashcat_ctx->user_options_extra;
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user_options_t *user_options = hashcat_ctx->user_options;
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wl_data_t *wl_data = hashcat_ctx->wl_data;
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//hc_signal (NULL);
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dictstat_t d;
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d.cnt = 0;
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#if defined (_POSIX)
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fstat (fileno (fd), &d.stat);
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#endif
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#if defined (_WIN)
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_fstat64 (fileno (fd), &d.stat);
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#endif
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d.stat.st_mode = 0;
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d.stat.st_nlink = 0;
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d.stat.st_uid = 0;
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d.stat.st_gid = 0;
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d.stat.st_rdev = 0;
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d.stat.st_atime = 0;
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#if defined (_POSIX)
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d.stat.st_blksize = 0;
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d.stat.st_blocks = 0;
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#endif
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if (d.stat.st_size == 0) return 0;
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const u64 cached_cnt = dictstat_find (hashcat_ctx, &d);
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if (run_rule_engine (user_options_extra->rule_len_l, user_options->rule_buf_l) == 0)
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{
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if (cached_cnt)
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{
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u64 keyspace = cached_cnt;
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if (user_options_extra->attack_kern == ATTACK_KERN_STRAIGHT)
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{
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keyspace *= straight_ctx->kernel_rules_cnt;
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}
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else if (user_options_extra->attack_kern == ATTACK_KERN_COMBI)
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{
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keyspace *= combinator_ctx->combs_cnt;
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}
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if (user_options->quiet == false) event_log_info (hashcat_ctx, "Cache-hit dictionary stats %s: %" PRIu64 " bytes, %" PRIu64 " words, %" PRIu64 " keyspace", dictfile, d.stat.st_size, cached_cnt, keyspace);
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if (user_options->quiet == false) event_log_info (hashcat_ctx, "");
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//hc_signal (sigHandler_default);
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return (keyspace);
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}
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}
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time_t now = 0;
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time_t prev = 0;
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u64 comp = 0;
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u64 cnt = 0;
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u64 cnt2 = 0;
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while (!feof (fd))
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{
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load_segment (hashcat_ctx, fd);
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comp += wl_data->cnt;
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u64 i = 0;
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while (i < wl_data->cnt)
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{
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u64 len;
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u64 off;
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wl_data->func (wl_data->buf + i, wl_data->cnt - i, &len, &off);
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if (run_rule_engine (user_options_extra->rule_len_l, user_options->rule_buf_l))
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{
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char rule_buf_out[BLOCK_SIZE] = { 0 };
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int rule_len_out = -1;
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if (len < BLOCK_SIZE)
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{
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rule_len_out = _old_apply_rule (user_options->rule_buf_l, user_options_extra->rule_len_l, wl_data->buf + i, len, rule_buf_out);
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}
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if (rule_len_out < 0)
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{
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len = PW_MAX1;
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}
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else
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{
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len = rule_len_out;
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}
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}
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if (len < PW_MAX1)
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{
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if (user_options_extra->attack_kern == ATTACK_KERN_STRAIGHT)
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{
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cnt += straight_ctx->kernel_rules_cnt;
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}
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else if (user_options_extra->attack_kern == ATTACK_KERN_COMBI)
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{
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cnt += combinator_ctx->combs_cnt;
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}
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d.cnt++;
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}
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i += off;
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cnt2++;
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}
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time (&now);
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if ((now - prev) == 0) continue;
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double percent = (double) comp / (double) d.stat.st_size;
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if (user_options->quiet == false) event_log_info_nn (hashcat_ctx, "Generating dictionary stats for %s: %" PRIu64 " bytes (%.2f%%), %" PRIu64 " words, %" PRIu64 " keyspace", dictfile, comp, percent * 100, cnt2, cnt);
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time (&prev);
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}
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if (user_options->quiet == false) event_log_info (hashcat_ctx, "Generated dictionary stats for %s: %" PRIu64 " bytes, %" PRIu64 " words, %" PRIu64 " keyspace", dictfile, comp, cnt2, cnt);
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if (user_options->quiet == false) event_log_info (hashcat_ctx, "");
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dictstat_append (hashcat_ctx, &d);
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//hc_signal (sigHandler_default);
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return (cnt);
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}
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int wl_data_init (hashcat_ctx_t *hashcat_ctx)
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{
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hashconfig_t *hashconfig = hashcat_ctx->hashconfig;
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user_options_t *user_options = hashcat_ctx->user_options;
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wl_data_t *wl_data = hashcat_ctx->wl_data;
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wl_data->enabled = false;
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if (user_options->benchmark == true) return 0;
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if (user_options->keyspace == true) return 0;
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if (user_options->left == true) return 0;
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if (user_options->opencl_info == true) return 0;
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if (user_options->usage == true) return 0;
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if (user_options->version == true) return 0;
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wl_data->enabled = true;
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wl_data->buf = (char *) hcmalloc (hashcat_ctx, user_options->segment_size); VERIFY_PTR (wl_data->buf);
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wl_data->avail = user_options->segment_size;
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wl_data->incr = user_options->segment_size;
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wl_data->cnt = 0;
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wl_data->pos = 0;
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/**
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* choose dictionary parser
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*/
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wl_data->func = get_next_word_std;
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if (hashconfig->opts_type & OPTS_TYPE_PT_UPPER)
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{
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wl_data->func = get_next_word_uc;
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}
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if (hashconfig->hash_mode == 3000) // yes that's fine that way
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{
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wl_data->func = get_next_word_lm;
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}
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return 0;
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}
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void wl_data_destroy (hashcat_ctx_t *hashcat_ctx)
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{
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wl_data_t *wl_data = hashcat_ctx->wl_data;
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if (wl_data->enabled == false) return;
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hcfree (wl_data->buf);
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memset (wl_data, 0, sizeof (wl_data_t));
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}
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