static void
test_storagedir_empty(void *arg)
{
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
(void)arg;
tt_int_op(FN_NOENT, OP_EQ, file_status(dirname));
d = storage_dir_new(dirname, 10);
tt_assert(d);
tt_int_op(FN_DIR, OP_EQ, file_status(dirname));
tt_int_op(0, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(0, OP_EQ, storage_dir_get_usage(d));
storage_dir_free(d);
d = storage_dir_new(dirname, 10);
tt_assert(d);
tt_int_op(FN_DIR, OP_EQ, file_status(dirname));
tt_int_op(0, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(0, OP_EQ, storage_dir_get_usage(d));
done:
storage_dir_free(d);
tor_free(dirname);
}
static void
test_storagedir_deletion(void *arg)
{
(void)arg;
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
char *fn1 = NULL, *fn2 = NULL;
char *bytes = NULL;
int r;
const char str1[] = "There are nine and sixty ways to disguise communiques";
const char str2[] = "And rather more than one of them is right";
// Make sure the directory is there. */
d = storage_dir_new(dirname, 10);
storage_dir_free(d);
d = NULL;
tor_asprintf(&fn1, "%s/1007", dirname);
r = write_str_to_file(fn1, str1, 0);
tt_int_op(r, OP_EQ, 0);
tor_asprintf(&fn2, "%s/1003.tmp", dirname);
r = write_str_to_file(fn2, str2, 0);
tt_int_op(r, OP_EQ, 0);
// The tempfile should be deleted the next time we list the directory.
d = storage_dir_new(dirname, 10);
tt_int_op(1, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(strlen(str1), OP_EQ, storage_dir_get_usage(d));
tt_int_op(FN_FILE, OP_EQ, file_status(fn1));
tt_int_op(FN_NOENT, OP_EQ, file_status(fn2));
bytes = (char*) storage_dir_read(d, "1007", 1, NULL);
tt_str_op(bytes, OP_EQ, str1);
// Should have no effect; file already gone.
storage_dir_remove_file(d, "1003.tmp");
tt_int_op(1, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(strlen(str1), OP_EQ, storage_dir_get_usage(d));
// Actually remove a file.
storage_dir_remove_file(d, "1007");
tt_int_op(FN_NOENT, OP_EQ, file_status(fn1));
tt_int_op(0, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(0, OP_EQ, storage_dir_get_usage(d));
done:
tor_free(dirname);
tor_free(fn1);
tor_free(fn2);
storage_dir_free(d);
tor_free(bytes);
}
/**
* Helper: Open a consensus cache in subdirectory <b>subdir</b> of the
* data directory, to hold up to <b>max_entries</b> of data.
*/
consensus_cache_t *
consensus_cache_open(const char *subdir, int max_entries)
{
int storagedir_max_entries;
consensus_cache_t *cache = tor_malloc_zero(sizeof(consensus_cache_t));
char *directory = get_cachedir_fname(subdir);
cache->max_entries = max_entries;
#ifdef MUST_UNMAP_TO_UNLINK
/* If we can't unlink the files that we're still using, then we need to
* tell the storagedir backend to allow far more files than this consensus
* cache actually wants, so that it can hold files which, from this cache's
* perspective, have become useless.
*/
#define VERY_LARGE_STORAGEDIR_LIMIT (1000*1000)
storagedir_max_entries = VERY_LARGE_STORAGEDIR_LIMIT;
#else /* !(defined(MUST_UNMAP_TO_UNLINK)) */
/* Otherwise, we can just tell the storagedir to use the same limits
* as this cache. */
storagedir_max_entries = max_entries;
#endif /* defined(MUST_UNMAP_TO_UNLINK) */
cache->dir = storage_dir_new(directory, storagedir_max_entries);
tor_free(directory);
if (!cache->dir) {
tor_free(cache);
return NULL;
}
consensus_cache_rescan(cache);
return cache;
}
static void
test_storagedir_full(void *arg)
{
(void)arg;
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
const char str[] = "enemies of the peephole";
int r;
d = storage_dir_new(dirname, 3);
tt_assert(d);
r = storage_dir_save_string_to_file(d, str, 1, NULL);
tt_int_op(r, OP_EQ, 0);
r = storage_dir_save_string_to_file(d, str, 1, NULL);
tt_int_op(r, OP_EQ, 0);
r = storage_dir_save_string_to_file(d, str, 1, NULL);
tt_int_op(r, OP_EQ, 0);
// These should fail!
r = storage_dir_save_string_to_file(d, str, 1, NULL);
tt_int_op(r, OP_EQ, -1);
r = storage_dir_save_string_to_file(d, str, 1, NULL);
tt_int_op(r, OP_EQ, -1);
tt_u64_op(strlen(str) * 3, OP_EQ, storage_dir_get_usage(d));
done:
tor_free(dirname);
storage_dir_free(d);
}
static void
test_storagedir_save_labeled(void *arg)
{
(void)arg;
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
uint8_t *inp = tor_malloc_zero(8192);
config_line_t *labels = NULL;
char *fname = NULL;
uint8_t *saved = NULL;
d = storage_dir_new(dirname, 10);
tt_assert(d);
crypto_rand((char *)inp, 8192);
config_line_append(&labels, "Foo", "bar baz");
config_line_append(&labels, "quux", "quuzXxz");
const char expected[] =
"Foo bar baz\n"
"quux quuzXxz\n";
int r = storage_dir_save_labeled_to_file(d, labels, inp, 8192, &fname);
tt_int_op(r, OP_EQ, 0);
size_t n = 0;
saved = storage_dir_read(d, fname, 1, &n);
tt_assert(memchr(saved, '\0', n));
tt_str_op((char*)saved, OP_EQ, expected); /* NUL guarantees strcmp works */
tt_mem_op(saved+strlen(expected)+1, OP_EQ, inp, 8192);
done:
storage_dir_free(d);
tor_free(dirname);
tor_free(inp);
tor_free(fname);
config_free_lines(labels);
tor_free(saved);
}
static void
test_storagedir_basic(void *arg)
{
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
uint8_t *junk = NULL, *bytes = NULL;
const size_t junklen = 1024;
char *fname1 = NULL, *fname2 = NULL;
const char hello_str[] = "then what are we but cold, alone ... ?";
tor_mmap_t *mapping = NULL;
(void)arg;
junk = tor_malloc(junklen);
crypto_rand((void*)junk, junklen);
d = storage_dir_new(dirname, 10);
tt_assert(d);
tt_u64_op(0, OP_EQ, storage_dir_get_usage(d));
int r;
r = storage_dir_save_string_to_file(d, hello_str, 1, &fname1);
tt_int_op(r, OP_EQ, 0);
tt_ptr_op(fname1, OP_NE, NULL);
tt_u64_op(strlen(hello_str), OP_EQ, storage_dir_get_usage(d));
r = storage_dir_save_bytes_to_file(d, junk, junklen, 1, &fname2);
tt_int_op(r, OP_EQ, 0);
tt_ptr_op(fname2, OP_NE, NULL);
tt_str_op(fname1, OP_NE, fname2);
tt_int_op(2, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(junklen + strlen(hello_str), OP_EQ, storage_dir_get_usage(d));
tt_assert(smartlist_contains_string(storage_dir_list(d), fname1));
tt_assert(smartlist_contains_string(storage_dir_list(d), fname2));
storage_dir_free(d);
d = storage_dir_new(dirname, 10);
tt_assert(d);
tt_int_op(2, OP_EQ, smartlist_len(storage_dir_list(d)));
tt_u64_op(junklen + strlen(hello_str), OP_EQ, storage_dir_get_usage(d));
tt_assert(smartlist_contains_string(storage_dir_list(d), fname1));
tt_assert(smartlist_contains_string(storage_dir_list(d), fname2));
size_t n;
bytes = storage_dir_read(d, fname2, 1, &n);
tt_assert(bytes);
tt_u64_op(n, OP_EQ, junklen);
tt_mem_op(bytes, OP_EQ, junk, junklen);
mapping = storage_dir_map(d, fname1);
tt_assert(mapping);
tt_u64_op(mapping->size, OP_EQ, strlen(hello_str));
tt_mem_op(mapping->data, OP_EQ, hello_str, strlen(hello_str));
done:
tor_free(dirname);
tor_free(junk);
tor_free(bytes);
tor_munmap_file(mapping);
storage_dir_free(d);
tor_free(fname1);
tor_free(fname2);
}
static void
test_storagedir_read_labeled(void *arg)
{
(void)arg;
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
uint8_t *inp = tor_malloc_zero(8192);
config_line_t *labels = NULL, *labels2 = NULL;
char *fname = NULL;
tor_mmap_t *map = NULL;
uint8_t *as_read = NULL;
d = storage_dir_new(dirname, 10);
tt_assert(d);
tor_snprintf((char*)inp, 8192,
"Hello world\n"
"This is a test\n"
"Yadda yadda.\n");
size_t bodylen = 8192 - strlen((char*)inp) - 1;
crypto_rand((char *)inp+strlen((char*)inp)+1, bodylen);
int r = storage_dir_save_bytes_to_file(d, inp, 8192, 1, &fname);
tt_int_op(r, OP_EQ, 0);
/* Try mapping */
const uint8_t *datap = NULL;
size_t sz = 0;
map = storage_dir_map_labeled(d, fname, &labels, &datap, &sz);
tt_assert(map);
tt_assert(datap);
tt_u64_op(sz, OP_EQ, bodylen);
tt_mem_op(datap, OP_EQ, inp+strlen((char*)inp)+1, bodylen);
tt_assert(labels);
tt_str_op(labels->key, OP_EQ, "Hello");
tt_str_op(labels->value, OP_EQ, "world");
tt_assert(labels->next);
tt_str_op(labels->next->key, OP_EQ, "This");
tt_str_op(labels->next->value, OP_EQ, "is a test");
tt_assert(labels->next->next);
tt_str_op(labels->next->next->key, OP_EQ, "Yadda");
tt_str_op(labels->next->next->value, OP_EQ, "yadda.");
tt_ptr_op(labels->next->next->next, OP_EQ, NULL);
/* Try reading this time. */
sz = 0;
as_read = storage_dir_read_labeled(d, fname, &labels2, &sz);
tt_assert(as_read);
tt_u64_op(sz, OP_EQ, bodylen);
tt_mem_op(as_read, OP_EQ, inp+strlen((char*)inp)+1, bodylen);
tt_assert(config_lines_eq(labels, labels2));
done:
storage_dir_free(d);
tor_free(dirname);
tor_free(inp);
tor_free(fname);
config_free_lines(labels);
config_free_lines(labels2);
tor_munmap_file(map);
tor_free(as_read);
}
static void
test_storagedir_cleaning(void *arg)
{
(void)arg;
char *dirname = tor_strdup(get_fname_rnd("store_dir"));
storage_dir_t *d = NULL;
const char str[] =
"On a mountain halfway between Reno and Rome / "
"We have a machine in a plexiglass dome / "
"Which listens and looks into everyone's home."
" -- Dr. Seuss";
char *fns[8];
int r, i;
memset(fns, 0, sizeof(fns));
d = storage_dir_new(dirname, 10);
tt_assert(d);
for (i = 0; i < 8; ++i) {
r = storage_dir_save_string_to_file(d, str+i*2, 1, &fns[i]);
tt_int_op(r, OP_EQ, 0);
}
/* Now we're going to make sure all the files have distinct mtimes. */
time_t now = time(NULL);
struct utimbuf ub;
ub.actime = now;
ub.modtime = now - 1000;
for (i = 0; i < 8; ++i) {
char *f = NULL;
tor_asprintf(&f, "%s/%s", dirname, fns[i]);
r = utime(f, &ub);
tor_free(f);
tt_int_op(r, OP_EQ, 0);
ub.modtime += 5;
}
const uint64_t usage_orig = storage_dir_get_usage(d);
/* No changes needed if we are already under target. */
storage_dir_shrink(d, 1024*1024, 0);
tt_u64_op(usage_orig, OP_EQ, storage_dir_get_usage(d));
/* Get rid of at least one byte. This will delete fns[0]. */
storage_dir_shrink(d, usage_orig - 1, 0);
tt_u64_op(usage_orig, OP_GT, storage_dir_get_usage(d));
tt_u64_op(usage_orig - strlen(str), OP_EQ, storage_dir_get_usage(d));
/* Get rid of at least two files. This will delete fns[1] and fns[2]. */
storage_dir_shrink(d, 1024*1024, 2);
tt_u64_op(usage_orig - strlen(str)*3 + 6, OP_EQ, storage_dir_get_usage(d));
/* Get rid of everything. */
storage_dir_remove_all(d);
tt_u64_op(0, OP_EQ, storage_dir_get_usage(d));
done:
tor_free(dirname);
storage_dir_free(d);
for (i = 0; i < 8; ++i) {
tor_free(fns[i]);
}
}
