mirror of
https://github.com/hashcat/hashcat.git
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fc100a852b
Fixes https://github.com/hashcat/hashcat/issues/1287 Limited hash-mode 2500 to max length 63 Fixes https://github.com/hashcat/hashcat/issues/1286
383 lines
11 KiB
C
383 lines
11 KiB
C
/**
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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 "outfile_check.h"
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#include "convert.h"
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#include "folder.h"
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#include "hashes.h"
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#include "interface.h"
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#include "shared.h"
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#include "thread.h"
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static int outfile_remove (hashcat_ctx_t *hashcat_ctx)
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{
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// some hash-dependent constants
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hashconfig_t *hashconfig = hashcat_ctx->hashconfig;
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hashes_t *hashes = hashcat_ctx->hashes;
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outcheck_ctx_t *outcheck_ctx = hashcat_ctx->outcheck_ctx;
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status_ctx_t *status_ctx = hashcat_ctx->status_ctx;
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user_options_t *user_options = hashcat_ctx->user_options;
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u32 dgst_size = hashconfig->dgst_size;
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u32 is_salted = hashconfig->is_salted;
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u32 esalt_size = hashconfig->esalt_size;
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u32 hook_salt_size = hashconfig->hook_salt_size;
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u32 hash_mode = hashconfig->hash_mode;
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char separator = hashconfig->separator;
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char *root_directory = outcheck_ctx->root_directory;
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u32 outfile_check_timer = user_options->outfile_check_timer;
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// buffers
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hash_t hash_buf = { 0, 0, 0, 0, 0, 0, NULL, 0 };
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hash_buf.digest = hcmalloc (dgst_size);
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if (is_salted) hash_buf.salt = (salt_t *) hcmalloc (sizeof (salt_t));
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if (esalt_size) hash_buf.esalt = (void *) hcmalloc (esalt_size);
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if (hook_salt_size) hash_buf.hook_salt = (void *) hcmalloc (hook_salt_size);
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u32 digest_buf[64] = { 0 };
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outfile_data_t *out_info = NULL;
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char **out_files = NULL;
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time_t folder_mtime = 0;
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int out_cnt = 0;
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u32 check_left = outfile_check_timer; // or 1 if we want to check it at startup
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while (status_ctx->shutdown_inner == false)
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{
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hc_sleep (1);
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if (status_ctx->devices_status != STATUS_RUNNING) continue;
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check_left--;
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if (check_left == 0)
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{
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if (hc_path_exist (root_directory) == true)
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{
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const bool is_dir = hc_path_is_directory (root_directory);
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if (is_dir == true)
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{
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hc_stat_t outfile_check_stat;
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if (hc_stat (root_directory, &outfile_check_stat) == -1)
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{
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event_log_error (hashcat_ctx, "%s: %s", root_directory, strerror (errno));
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hcfree (out_files);
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hcfree (out_info);
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return -1;
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}
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if (outfile_check_stat.st_mtime > folder_mtime)
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{
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char **out_files_new = scan_directory (root_directory);
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int out_cnt_new = count_dictionaries (out_files_new);
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outfile_data_t *out_info_new = NULL;
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if (out_cnt_new > 0)
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{
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out_info_new = (outfile_data_t *) hccalloc (out_cnt_new, sizeof (outfile_data_t));
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for (int i = 0; i < out_cnt_new; i++)
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{
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out_info_new[i].file_name = out_files_new[i];
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// check if there are files that we have seen/checked before (and not changed)
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for (int j = 0; j < out_cnt; j++)
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{
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if (strcmp (out_info[j].file_name, out_info_new[i].file_name) == 0)
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{
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hc_stat_t outfile_stat;
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if (hc_stat (out_info_new[i].file_name, &outfile_stat) == 0)
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{
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if (outfile_stat.st_ctime == out_info[j].ctime)
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{
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out_info_new[i].ctime = out_info[j].ctime;
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out_info_new[i].seek = out_info[j].seek;
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}
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}
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}
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}
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}
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}
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hcfree (out_info);
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hcfree (out_files);
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out_files = out_files_new;
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out_cnt = out_cnt_new;
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out_info = out_info_new;
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folder_mtime = outfile_check_stat.st_mtime;
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}
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for (int j = 0; j < out_cnt; j++)
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{
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FILE *fp = fopen (out_info[j].file_name, "rb");
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if (fp != NULL)
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{
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//hc_thread_mutex_lock (status_ctx->mux_display);
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hc_stat_t outfile_stat;
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if (hc_fstat (fileno (fp), &outfile_stat))
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{
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fclose (fp);
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continue;
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}
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if (outfile_stat.st_ctime > out_info[j].ctime)
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{
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out_info[j].ctime = outfile_stat.st_ctime;
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out_info[j].seek = 0;
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}
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fseeko (fp, out_info[j].seek, SEEK_SET);
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char *line_buf = (char *) hcmalloc (HCBUFSIZ_LARGE);
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while (!feof (fp))
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{
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char *ptr = fgets (line_buf, HCBUFSIZ_LARGE - 1, fp);
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if (ptr == NULL) break;
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size_t line_len = strlen (line_buf);
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if (line_len == 0) continue;
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size_t iter = 1;
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for (size_t i = line_len - 1; i && iter; i--, line_len--)
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{
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if (line_buf[i] != separator) continue;
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iter--;
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int parser_status = PARSER_OK;
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if ((hash_mode != 2500) && (hash_mode != 2501) && (hash_mode != 6800))
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{
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parser_status = hashconfig->parse_func ((u8 *) line_buf, line_len - 1, &hash_buf, hashconfig);
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}
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u32 found = 0;
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if (parser_status == PARSER_OK)
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{
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for (u32 salt_pos = 0; (found == 0) && (salt_pos < hashes->salts_cnt); salt_pos++)
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{
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if (hashes->salts_shown[salt_pos] == 1) continue;
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salt_t *salt_buf = &hashes->salts_buf[salt_pos];
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for (u32 digest_pos = 0; (found == 0) && (digest_pos < salt_buf->digests_cnt); digest_pos++)
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{
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u32 idx = salt_buf->digests_offset + digest_pos;
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if (hashes->digests_shown[idx] == 1) continue;
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u32 cracked = 0;
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if (hash_mode == 6800)
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{
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if (i == salt_buf->salt_len)
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{
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cracked = (memcmp (line_buf, salt_buf->salt_buf, salt_buf->salt_len) == 0);
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}
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}
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else if ((hash_mode == 2500) || (hash_mode == 2501))
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{
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// this comparison is a bit inaccurate as we compare only ESSID
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// call it a bug, but it's good enough for a special case used in a special case
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// in this case all essid will be marked as cracked that match the essid
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if (i == salt_buf->salt_len)
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{
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cracked = (memcmp (line_buf, salt_buf->salt_buf, salt_buf->salt_len) == 0);
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}
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}
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else
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{
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char *digests_buf_ptr = (char *) hashes->digests_buf;
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memcpy (digest_buf, digests_buf_ptr + (hashes->salts_buf[salt_pos].digests_offset * dgst_size) + (digest_pos * dgst_size), dgst_size);
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cracked = (sort_by_digest_p0p1 (digest_buf, hash_buf.digest, hashconfig) == 0);
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}
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if (cracked == 1)
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{
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found = 1;
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hashes->digests_shown[idx] = 1;
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hashes->digests_done++;
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salt_buf->digests_done++;
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if (salt_buf->digests_done == salt_buf->digests_cnt)
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{
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hashes->salts_shown[salt_pos] = 1;
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hashes->salts_done++;
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if (hashes->salts_done == hashes->salts_cnt) mycracked (hashcat_ctx);
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}
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}
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}
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if (status_ctx->devices_status == STATUS_CRACKED) break;
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}
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}
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if (found) break;
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if (status_ctx->devices_status == STATUS_CRACKED) break;
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}
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if (status_ctx->devices_status == STATUS_CRACKED) break;
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}
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hcfree (line_buf);
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out_info[j].seek = ftello (fp);
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//hc_thread_mutex_unlock (status_ctx->mux_display);
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fclose (fp);
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}
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}
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}
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}
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check_left = outfile_check_timer;
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}
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}
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hcfree (hash_buf.esalt);
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hcfree (hash_buf.hook_salt);
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hcfree (hash_buf.salt);
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hcfree (hash_buf.digest);
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hcfree (out_info);
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hcfree (out_files);
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return 0;
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}
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void *thread_outfile_remove (void *p)
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{
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hashcat_ctx_t *hashcat_ctx = (hashcat_ctx_t *) p;
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const int rc = outfile_remove (hashcat_ctx);
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if (rc == -1) return NULL;
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return NULL;
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}
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int outcheck_ctx_init (hashcat_ctx_t *hashcat_ctx)
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{
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folder_config_t *folder_config = hashcat_ctx->folder_config;
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outcheck_ctx_t *outcheck_ctx = hashcat_ctx->outcheck_ctx;
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user_options_t *user_options = hashcat_ctx->user_options;
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outcheck_ctx->enabled = false;
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if (user_options->keyspace == true) return 0;
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if (user_options->benchmark == true) return 0;
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if (user_options->speed_only == true) return 0;
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if (user_options->progress_only == true) return 0;
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if (user_options->opencl_info == true) return 0;
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if (user_options->outfile_check_timer == 0) return 0;
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if ((user_options->hash_mode == 5200) ||
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((user_options->hash_mode >= 6200) && (user_options->hash_mode <= 6299)) ||
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((user_options->hash_mode >= 13700) && (user_options->hash_mode <= 13799)) ||
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(user_options->hash_mode == 9000)) return 0;
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if (user_options->outfile_check_dir == NULL)
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{
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hc_asprintf (&outcheck_ctx->root_directory, "%s/%s.%s", folder_config->session_dir, user_options->session, OUTFILES_DIR);
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}
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else
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{
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outcheck_ctx->root_directory = user_options->outfile_check_dir;
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}
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outcheck_ctx->enabled = true;
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if (hc_path_exist (outcheck_ctx->root_directory) == false)
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{
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if (hc_mkdir (outcheck_ctx->root_directory, 0700) == -1)
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{
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event_log_error (hashcat_ctx, "%s: %s", outcheck_ctx->root_directory, strerror (errno));
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return -1;
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}
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}
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return 0;
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}
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void outcheck_ctx_destroy (hashcat_ctx_t *hashcat_ctx)
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{
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outcheck_ctx_t *outcheck_ctx = hashcat_ctx->outcheck_ctx;
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user_options_t *user_options = hashcat_ctx->user_options;
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if (outcheck_ctx->enabled == false) return;
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if (rmdir (outcheck_ctx->root_directory) == -1)
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{
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if (errno == ENOENT)
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{
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// good, we can ignore
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}
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else if (errno == ENOTEMPTY)
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{
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// good, we can ignore
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}
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else
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{
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event_log_error (hashcat_ctx, "%s: %s", outcheck_ctx->root_directory, strerror (errno));
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//return -1;
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}
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}
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if (user_options->outfile_check_dir == NULL)
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{
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hcfree (outcheck_ctx->root_directory);
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}
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memset (outcheck_ctx, 0, sizeof (outcheck_ctx_t));
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}
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