static void john_load_conf_db(void)
{
if (options.flags & FLG_STDOUT) {
/* john.conf alternative for --internal-encoding */
if (!pers_opts.internal_enc &&
pers_opts.target_enc == UTF_8 && options.flags &
(FLG_RULES | FLG_SINGLE_CHK | FLG_BATCH_CHK | FLG_MASK_CHK))
if (!(pers_opts.internal_enc =
cp_name2id(cfg_get_param(SECTION_OPTIONS, NULL,
"DefaultInternalEncoding"))))
/* Deprecated alternative */
pers_opts.internal_enc =
cp_name2id(cfg_get_param(SECTION_OPTIONS, NULL,
"DefaultIntermediateEncoding"));
}
if (!pers_opts.unicode_cp)
initUnicode(UNICODE_UNICODE);
pers_opts.report_utf8 = cfg_get_bool(SECTION_OPTIONS,
NULL, "AlwaysReportUTF8", 0);
/* Unicode (UTF-16) formats may lack encoding support. We
must stop the user from trying to use it because it will
just result in false negatives. */
if (database.format && pers_opts.target_enc != ASCII &&
pers_opts.target_enc != ISO_8859_1 &&
database.format->params.flags & FMT_UNICODE &&
!(database.format->params.flags & FMT_UTF8)) {
if (john_main_process)
fprintf(stderr, "This format does not yet support"
" other encodings than ISO-8859-1\n");
error();
}
if (database.format && database.format->params.flags & FMT_UNICODE)
pers_opts.store_utf8 = cfg_get_bool(SECTION_OPTIONS,
NULL, "UnicodeStoreUTF8", 0);
else
pers_opts.store_utf8 = cfg_get_bool(SECTION_OPTIONS,
NULL, "CPstoreUTF8", 0);
if (!options.secure) {
if (pers_opts.report_utf8 && options.loader.log_passwords)
log_event("- Passwords in this logfile are "
"UTF-8 encoded");
if (pers_opts.store_utf8)
log_event("- Passwords will be stored UTF-8 "
"encoded in .pot file");
}
if (pers_opts.target_enc != pers_opts.input_enc &&
pers_opts.input_enc != UTF_8) {
if (john_main_process)
fprintf(stderr, "Target encoding can only be specified"
" if input encoding is UTF-8\n");
exit(0);
}
if (!(options.flags & FLG_SHOW_CHK) && !options.loader.showuncracked)
if (options.flags & (FLG_PASSWD | FLG_STDIN_CHK))
if (pers_opts.default_enc && john_main_process &&
pers_opts.input_enc != ASCII)
fprintf(stderr, "Using default input encoding: %s\n",
cp_id2name(pers_opts.input_enc));
if (!(options.flags & FLG_SHOW_CHK) && !options.loader.showuncracked)
if (pers_opts.target_enc != pers_opts.input_enc &&
(!database.format ||
!(database.format->params.flags & FMT_UNICODE))) {
log_event("- Target encoding: %s",
cp_id2name(pers_opts.target_enc));
if (john_main_process) {
if (pers_opts.default_target_enc)
fprintf(stderr, "Using default target "
"encoding: %s\n",
cp_id2name(pers_opts.target_enc));
else
fprintf(stderr, "Target encoding: %s\n",
cp_id2name(pers_opts.target_enc));
}
}
if (!(options.flags & FLG_SHOW_CHK) && !options.loader.showuncracked)
if (pers_opts.input_enc != pers_opts.internal_enc) {
log_event("- Rules/masks using %s",
cp_id2name(pers_opts.internal_enc));
if (john_main_process &&
(database.format->params.flags & FMT_UNICODE))
fprintf(stderr, "Rules/masks using %s\n",
cp_id2name(pers_opts.internal_enc));
}
}
static void rec_name_complete(void)
{
if (rec_name_completed)
return;
#ifndef HAVE_MPI
if (options.fork && !john_main_process) {
#else
if (!john_main_process && options.node_min) {
#endif
char *suffix = mem_alloc(1 + 20 + strlen(RECOVERY_SUFFIX) + 1);
sprintf(suffix, ".%u%s", options.node_min, RECOVERY_SUFFIX);
rec_name = path_session(rec_name, suffix);
MEM_FREE(suffix);
} else {
rec_name = path_session(rec_name, RECOVERY_SUFFIX);
}
rec_name_completed = 1;
}
#if OS_FLOCK || FCNTL_LOCKS
static void rec_lock(int shared)
{
int lockmode;
#if FCNTL_LOCKS
int blockmode;
struct flock lock;
#endif
/*
* In options.c, MPI code path call rec_restore_args(mpi_p)
* relying on anything >1 meaning LOCK_SH. After restore, the
* root node must block, in case some other node has not yet
* closed the original file
*/
if (shared == 1) {
#if FCNTL_LOCKS
lockmode = F_WRLCK;
blockmode = F_SETLKW;
#else
lockmode = LOCK_EX;
#endif
#ifdef HAVE_MPI
if (!rec_restored || mpi_id || mpi_p == 1)
#endif
#if FCNTL_LOCKS
blockmode = F_SETLK;
#else
lockmode |= LOCK_NB;
#endif
} else
#if FCNTL_LOCKS
{
lockmode = F_RDLCK;
blockmode = F_SETLK;
}
#else
lockmode = LOCK_SH | LOCK_NB;
#endif
#ifdef LOCK_DEBUG
fprintf(stderr, "%s(%u): Locking session file...\n", __FUNCTION__, options.node_min);
#endif
#if FCNTL_LOCKS
memset(&lock, 0, sizeof(lock));
lock.l_type = lockmode;
if (fcntl(rec_fd, blockmode, &lock)) {
if (errno == EAGAIN || errno == EACCES) {
#else
if (flock(rec_fd, lockmode)) {
if (errno == EWOULDBLOCK) {
#endif
#ifdef HAVE_MPI
fprintf(stderr, "Node %d@%s: Crash recovery file is"
" locked: %s\n", mpi_id + 1, mpi_name,
path_expand(rec_name));
#else
fprintf(stderr, "Crash recovery file is locked: %s\n",
path_expand(rec_name));
#endif
error();
} else
#if FCNTL_LOCKS
pexit("fcntl()");
#else
pexit("flock()");
#endif
}
#ifdef LOCK_DEBUG
fprintf(stderr, "%s(%u): Locked session file (%s)\n", __FUNCTION__, options.node_min, shared == 1 ? "exclusive" : "shared");
#endif
}
static void rec_unlock(void)
{
#if FCNTL_LOCKS
struct flock lock = { 0 };
lock.l_type = F_UNLCK;
#endif
#ifdef LOCK_DEBUG
fprintf(stderr, "%s(%u): Unlocking session file\n", __FUNCTION__, options.node_min);
#endif
#if FCNTL_LOCKS
if (fcntl(rec_fd, F_SETLK, &lock))
pexit("fcntl(F_UNLCK)");
#else
if (flock(rec_fd, LOCK_UN))
pexit("flock(LOCK_UN)");
#endif
}
#else
#define rec_lock(lock) \
{}
#define rec_unlock() \
{}
#endif
void rec_init(struct db_main *db, void (*save_mode)(FILE *file))
{
rec_done(1);
if (!rec_argc) return;
rec_name_complete();
if ((rec_fd = open(path_expand(rec_name), O_RDWR | O_CREAT, 0600)) < 0)
pexit("open: %s", path_expand(rec_name));
rec_lock(1);
if (!(rec_file = fdopen(rec_fd, "w"))) pexit("fdopen");
rec_db = db;
rec_save_mode = save_mode;
}
void rec_save(void)
{
int save_format;
#ifdef HAVE_MPI
int fake_fork;
#endif
int add_argc = 0, add_enc = 1, add_2nd_enc = 1;
int add_mkv_stats = (options.mkv_stats ? 1 : 0);
long size;
char **opt;
log_flush();
if (!rec_file) return;
if (fseek(rec_file, 0, SEEK_SET)) pexit("fseek");
#ifdef _MSC_VER
if (_write(fileno(rec_file), "", 0)) pexit("ftruncate");
#elif __CYGWIN__
if (ftruncate(rec_fd, 0)) pexit("ftruncate");
#endif
save_format = !options.format && rec_db->loaded;
#ifdef HAVE_MPI
fake_fork = (mpi_p > 1);
#endif
opt = rec_argv;
while (*++opt) {
#ifdef HAVE_MPI
if (!strncmp(*opt, "--fork", 6))
fake_fork = 0;
else
#endif
if (!strncmp(*opt, "--encoding", 10) ||
!strncmp(*opt, "--input-encoding", 16))
add_enc = 0;
else if (!strncmp(*opt, "--internal-encoding", 19) ||
!strncmp(*opt, "--target-encoding", 17))
add_2nd_enc = 0;
else if (!strncmp(*opt, "--mkv-stats", 11))
add_mkv_stats = 0;
}
if (add_2nd_enc && (options.flags & FLG_STDOUT) &&
(pers_opts.input_enc != UTF_8 || pers_opts.target_enc != UTF_8))
add_2nd_enc = 0;
add_argc = add_enc + add_2nd_enc + add_mkv_stats;
#ifdef HAVE_MPI
add_argc += fake_fork;
#endif
fprintf(rec_file, RECOVERY_V "\n%d\n",
rec_argc + (save_format ? 1 : 0) + add_argc);
opt = rec_argv;
while (*++opt)
{
/* Add defaults as if they were actually on **argv */
if (options.wordlist &&
!(strcmp(*opt, "--wordlist") && strcmp(*opt, "--loopback")))
fprintf(rec_file, "%s=%s\n", *opt, options.wordlist);
else if (!strcmp(*opt, "--rules"))
fprintf(rec_file, "%s=%s\n", *opt,
pers_opts.activewordlistrules);
else if (!strcmp(*opt, "--single"))
fprintf(rec_file, "%s=%s\n", *opt,
pers_opts.activesinglerules);
else if (!strcmp(*opt, "--incremental"))
fprintf(rec_file, "%s=%s\n", *opt,
options.charset);
else if (!strcmp(*opt, "--markov"))
fprintf(rec_file, "%s=%s\n", *opt,
options.mkv_param);
else
fprintf(rec_file, "%s\n", *opt);
}
if (save_format)
fprintf(rec_file, "--format=%s\n",
rec_db->format->params.label);
if (add_enc)
fprintf(rec_file, "--input-encoding=%s\n",
cp_id2name(pers_opts.input_enc));
if (add_2nd_enc && pers_opts.input_enc == UTF_8 &&
pers_opts.target_enc == UTF_8)
fprintf(rec_file, "--internal-encoding=%s\n",
cp_id2name(pers_opts.internal_enc));
else if (add_2nd_enc)
fprintf(rec_file, "--target-encoding=%s\n",
cp_id2name(pers_opts.target_enc));
if (add_mkv_stats)
fprintf(rec_file, "--mkv-stats=%s\n", options.mkv_stats);
#ifdef HAVE_MPI
if (fake_fork)
fprintf(rec_file, "--fork=%d\n", mpi_p);
#endif
fprintf(rec_file, "%u\n%u\n%x\n%x\n%x\n%x\n%x\n%x\n%x\n"
"%d\n%d\n%d\n%x\n",
status_get_time() + 1,
status.guess_count,
status.combs.lo,
status.combs.hi,
status.combs_ehi,
status.crypts.lo,
status.crypts.hi,
status.cands.lo,
status.cands.hi,
status.compat,
status.pass,
status_get_progress ? (int)status_get_progress() : -1,
rec_check);
if (rec_save_mode) rec_save_mode(rec_file);
if (options.flags & FLG_MASK_STACKED)
mask_save_state(rec_file);
if (ferror(rec_file)) pexit("fprintf");
if ((size = ftell(rec_file)) < 0) pexit("ftell");
if (fflush(rec_file)) pexit("fflush");
#ifndef _MSC_VER
if (ftruncate(rec_fd, size)) pexit("ftruncate");
#endif
#if HAVE_WINDOWS_H==0
if (!options.fork && fsync(rec_fd))
pexit("fsync");
#endif
}
