ostree/tests/test-repo.c
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/*
* Copyright © 2017 Endless Mobile, Inc.
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <https://www.gnu.org/licenses/>.
*
* Authors:
* - Philip Withnall <withnall@endlessm.com>
*/
#include "config.h"
#include <gio/gio.h>
#include <glib.h>
#include <glib-object.h>
#include <libglnx.h>
#include <locale.h>
#include "ostree-autocleanups.h"
#include "ostree-types.h"
/* Test fixture. Creates a temporary directory. */
typedef struct
{
GLnxTmpDir tmpdir; /* (owned) */
} Fixture;
static void
setup (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
(void) glnx_mkdtemp ("test-repo-XXXXXX", 0700, &fixture->tmpdir, &error);
g_assert_no_error (error);
g_test_message ("Using temporary directory: %s", fixture->tmpdir.path);
}
/* Common setup for locking tests. Create an archive repo in the tmpdir and
* set the locking timeout to 0 so lock failures don't block.
*/
static void
lock_setup (Fixture *fixture,
gconstpointer test_data)
{
setup (fixture, test_data);
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_create_at (fixture->tmpdir.fd, ".",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
/* Set the lock timeout to 0 so failures don't block the test */
g_autoptr(GKeyFile) config = ostree_repo_copy_config (repo);
g_key_file_set_integer (config, "core", "lock-timeout-secs", 0);
ostree_repo_write_config (repo, config, &error);
g_assert_no_error (error);
}
static void
teardown (Fixture *fixture,
gconstpointer test_data)
{
/* Recursively remove the temporary directory. */
(void) glnx_tmpdir_delete (&fixture->tmpdir, NULL, NULL);
}
/* Test that the hash values for two #OstreeRepo instances pointing at the same
* repository are equal. We cant test anything else, since hash collisions are
* always a possibility. */
static void
test_repo_hash (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo1 = ostree_repo_create_at (fixture->tmpdir.fd, ".",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepo) repo2 = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
g_assert_cmpuint (ostree_repo_hash (repo1), ==, ostree_repo_hash (repo2));
}
/* Test that trying to hash a closed repo results in an assertion failure. */
static void
test_repo_hash_closed (Fixture *fixture,
gconstpointer test_data)
{
if (g_test_subprocess ())
{
g_autoptr(GFile) repo_path = g_file_new_for_path (fixture->tmpdir.path);
g_autoptr(OstreeRepo) repo = ostree_repo_new (repo_path);
ostree_repo_hash (repo);
return;
}
g_test_trap_subprocess (NULL, 0, 0);
g_test_trap_assert_failed ();
g_test_trap_assert_stderr ("*ERROR*ostree_repo_hash: assertion failed:*");
}
/* Test that various repositories test equal (or not) with each other. */
static void
test_repo_equal (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
/* Create a few separate repos and some #OstreeRepo objects for them. */
glnx_ensure_dir (fixture->tmpdir.fd, "repo1", 0755, &error);
g_assert_no_error (error);
glnx_ensure_dir (fixture->tmpdir.fd, "repo2", 0755, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepo) repo1 = ostree_repo_create_at (fixture->tmpdir.fd, "repo1",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepo) repo1_alias = ostree_repo_open_at (fixture->tmpdir.fd, "repo1",
NULL, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepo) repo2 = ostree_repo_create_at (fixture->tmpdir.fd, "repo2",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
g_autoptr(GFile) closed_repo_path = g_file_new_for_path (fixture->tmpdir.path);
g_autoptr(OstreeRepo) closed_repo = ostree_repo_new (closed_repo_path);
/* Test various equalities. */
g_assert_true (ostree_repo_equal (repo1, repo1));
g_assert_true (ostree_repo_equal (repo1_alias, repo1_alias));
g_assert_true (ostree_repo_equal (repo1, repo1_alias));
g_assert_true (ostree_repo_equal (repo1_alias, repo1));
g_assert_true (ostree_repo_equal (repo2, repo2));
g_assert_false (ostree_repo_equal (repo1, repo2));
g_assert_false (ostree_repo_equal (repo1_alias, repo2));
g_assert_false (ostree_repo_equal (repo2, repo1));
g_assert_false (ostree_repo_equal (repo2, repo1_alias));
g_assert_false (ostree_repo_equal (repo1, closed_repo));
g_assert_false (ostree_repo_equal (repo1_alias, closed_repo));
g_assert_false (ostree_repo_equal (closed_repo, repo1));
g_assert_false (ostree_repo_equal (closed_repo, repo1_alias));
g_assert_false (ostree_repo_equal (repo2, closed_repo));
g_assert_false (ostree_repo_equal (closed_repo, repo2));
g_assert_false (ostree_repo_equal (closed_repo, closed_repo));
}
static void
test_repo_get_min_free_space (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr (GKeyFile) config = NULL;
g_autoptr(GError) error = NULL;
guint64 bytes = 0;
typedef struct
{
const char *val;
gboolean should_succeed;
} min_free_space_value;
g_autoptr(OstreeRepo) repo = ostree_repo_create_at (fixture->tmpdir.fd, ".",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
min_free_space_value values_to_test[] = {
{"500MB", TRUE },
{ "0MB", TRUE },
{ "17179869185GB", FALSE }, /* Overflow parameter: bytes > G_MAXUINT64 */
{ NULL, FALSE }
};
config = ostree_repo_copy_config (repo);
for (guint i = 0; values_to_test[i].val != NULL; i++)
{
g_key_file_remove_key (config, "core", "min-free-space-size", NULL);
g_key_file_set_string (config, "core", "min-free-space-size", values_to_test[i].val);
ostree_repo_write_config (repo, config, &error);
g_assert_no_error (error);
ostree_repo_reload_config (repo, NULL, &error);
g_assert_no_error (error);
ostree_repo_get_min_free_space_bytes (repo, &bytes, &error);
if (values_to_test[i].should_succeed)
g_assert_no_error (error);
else
continue;
}
}
static void
test_write_regfile_api (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr (GKeyFile) config = NULL;
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_create_at (fixture->tmpdir.fd, ".",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
g_auto(GVariantBuilder) xattrs_builder;
g_variant_builder_init (&xattrs_builder, (GVariantType*)"a(ayay)");
g_variant_builder_add (&xattrs_builder, "(^ay^ay)", "security.selinux", "system_u:object_r:etc_t:s0");
g_autoptr(GVariant) xattrs = g_variant_ref_sink (g_variant_builder_end (&xattrs_builder));
// Current contents of /etc/networks in Fedora
static const char contents[] = "default 0.0.0.0\nloopback 127.0.0.0\nlink-local 169.254.0.0\n";
// First with no xattrs
g_autofree char *checksum = ostree_repo_write_regfile_inline (repo, NULL, 0, 0, S_IFREG | 0644, NULL, (const guint8*)contents, sizeof (contents)-1, NULL, &error);
g_assert_no_error (error);
g_assert_cmpstr (checksum, ==, "8aaa9dc13a0c5839fe4a277756798c609c53fac6fa2290314ecfef9041065873");
g_clear_pointer (&checksum, g_free);
// Invalid checksum
checksum = ostree_repo_write_regfile_inline (repo, "3272139f889f6a7007b3d64adc74be9e2979bf6bbe663d1512e5bd43f4de24a1",
0, 0, S_IFREG | 0644, NULL, (const guint8*)contents, sizeof (contents)-1, NULL, &error);
g_assert (checksum == NULL);
g_assert (error != NULL);
g_clear_error (&error);
// Now with xattrs
g_clear_pointer (&checksum, g_free);
checksum = ostree_repo_write_regfile_inline (repo, NULL, 0, 0, S_IFREG | 0644, xattrs, (const guint8*)contents, sizeof (contents)-1, NULL, &error);
g_assert_no_error (error);
g_assert_cmpstr (checksum, ==, "4f600d252338f93279c51c964915cb2c26f0d09082164c54890d1a3c78cdeb1e");
g_clear_pointer (&checksum, g_free);
// Test symlinks
g_clear_pointer (&xattrs, g_variant_unref);
g_variant_builder_init (&xattrs_builder, (GVariantType*)"a(ayay)");
g_variant_builder_add (&xattrs_builder, "(^ay^ay)", "security.selinux", "system_u:object_r:bin_t:s0");
xattrs = g_variant_ref_sink (g_variant_builder_end (&xattrs_builder));
g_clear_pointer (&checksum, g_free);
checksum = ostree_repo_write_symlink (repo, NULL, 0, 0, xattrs, "bash", NULL, &error);
g_assert_no_error (error);
g_assert_cmpstr (checksum, ==, "23a2e97d21d960ac7a4e39a8721b1baff7b213e00e5e5641334f50506012fcff");
}
/* Just a sanity check of the C autolocking API */
static void
test_repo_autolock (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_create_at (fixture->tmpdir.fd, ".",
OSTREE_REPO_MODE_ARCHIVE,
NULL,
NULL, &error);
g_assert_no_error (error);
{
g_autoptr(OstreeRepoAutoLock) lock = ostree_repo_auto_lock_push (repo, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
}
g_autoptr(OstreeRepoAutoLock) lock1 = ostree_repo_auto_lock_push (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepoAutoLock) lock2 = ostree_repo_auto_lock_push (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
}
/* Locking from single thread with a single OstreeRepo */
static void
test_repo_lock_single (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
/* Single thread on a single repo can freely recurse in any state */
ostree_repo_lock_push (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
}
/* Unlocking without having ever locked */
static void
test_repo_lock_unlock_never_locked (Fixture *fixture,
gconstpointer test_data)
{
if (g_test_subprocess ())
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
return;
}
g_test_trap_subprocess (NULL, 0, 0);
g_test_trap_assert_failed ();
g_test_trap_assert_stderr ("*ERROR*Cannot pop repo never locked repo lock\n");
}
/* Unlocking after already unlocked */
static void
test_repo_lock_double_unlock (Fixture *fixture,
gconstpointer test_data)
{
if (g_test_subprocess ())
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
return;
}
g_test_trap_subprocess (NULL, 0, 0);
g_test_trap_assert_failed ();
g_test_trap_assert_stderr ("*ERROR*Cannot pop already unlocked repo lock\n");
}
/* Unlocking the wrong type */
static void
test_repo_lock_unlock_wrong_type (Fixture *fixture,
gconstpointer test_data)
{
if (g_test_subprocess ())
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
return;
}
g_test_trap_subprocess (NULL, 0, 0);
g_test_trap_assert_failed ();
g_test_trap_assert_stderr ("*ERROR*Repo exclusive lock pop requested, but none have been taken\n");
}
/* Locking with single thread and multiple OstreeRepos */
static void
test_repo_lock_multi_repo (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
/* Open two OstreeRepo instances */
g_autoptr(OstreeRepo) repo1 = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepo) repo2 = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
/* Single thread with multiple OstreeRepo's conflict */
ostree_repo_lock_push (repo1, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo1, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&error);
ostree_repo_lock_pop (repo1, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo2, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
/* Recursive lock should stay exclusive once acquired */
ostree_repo_lock_push (repo1, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo1, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&error);
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&error);
ostree_repo_lock_pop (repo1, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
ostree_repo_lock_pop (repo1, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
}
/* Locking from multiple threads with a single OstreeRepo */
typedef struct {
OstreeRepo *repo;
guint step;
} LockThreadData;
static gpointer
lock_thread1 (gpointer thread_data)
{
LockThreadData *data = thread_data;
g_autoptr(GError) error = NULL;
/* Step 0: Take an exclusive lock */
g_assert_cmpuint (data->step, ==, 0);
g_test_message ("Thread 1: Push exclusive lock");
ostree_repo_lock_push (data->repo, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
data->step++;
/* Step 2: Take a shared lock */
while (data->step != 2)
g_thread_yield ();
g_test_message ("Thread 1: Push shared lock");
ostree_repo_lock_push (data->repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
data->step++;
/* Step 4: Pop both locks */
while (data->step != 4)
g_thread_yield ();
g_test_message ("Thread 1: Pop shared lock");
ostree_repo_lock_pop (data->repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
g_test_message ("Thread 1: Pop exclusive lock");
ostree_repo_lock_pop (data->repo, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
data->step++;
return NULL;
}
static gpointer
lock_thread2 (gpointer thread_data)
{
LockThreadData *data = thread_data;
g_autoptr(GError) error = NULL;
/* Step 1: Wait for the other thread to acquire a lock and then take a
* shared lock.
*/
while (data->step != 1)
g_thread_yield ();
g_test_message ("Thread 2: Push shared lock");
ostree_repo_lock_push (data->repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
data->step++;
/* Step 6: Pop lock */
while (data->step != 6)
g_thread_yield ();
g_test_message ("Thread 2: Pop shared lock");
ostree_repo_lock_pop (data->repo, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
data->step++;
return NULL;
}
static void
test_repo_lock_multi_thread (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo1 = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
g_autoptr(OstreeRepo) repo2 = ostree_repo_open_at (fixture->tmpdir.fd, ".",
NULL, &error);
g_assert_no_error (error);
LockThreadData thread_data = {repo1, 0};
GThread *thread1 = g_thread_new ("lock-thread-1", lock_thread1, &thread_data);
GThread *thread2 = g_thread_new ("lock-thread-2", lock_thread2, &thread_data);
/* Step 3: Try to take a shared lock on repo2. This should fail since
* thread1 still has an exclusive lock.
*/
while (thread_data.step != 3)
g_thread_yield ();
g_test_message ("Repo 2: Push failing shared lock");
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&error);
thread_data.step++;
/* Step 5: Try to a lock on repo2. A shared lock should succeed since
* thread1 has dropped its exclusive lock.
*/
while (thread_data.step != 5)
g_thread_yield ();
g_test_message ("Repo 2: Push shared lock");
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
g_test_message ("Repo 2: Push failing exclusive lock");
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&error);
thread_data.step++;
/* Step 7: Now both threads have dropped their locks and taking an exclusive
* lock should succeed.
*/
while (thread_data.step != 7)
g_thread_yield ();
g_test_message ("Repo 2: Push exclusive lock");
ostree_repo_lock_push (repo2, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
g_test_message ("Repo 2: Pop exclusive lock");
ostree_repo_lock_pop (repo2, OSTREE_REPO_LOCK_EXCLUSIVE, NULL, &error);
g_assert_no_error (error);
g_test_message ("Repo 2: Pop shared lock");
ostree_repo_lock_pop (repo2, OSTREE_REPO_LOCK_SHARED, NULL, &error);
g_assert_no_error (error);
thread_data.step++;
g_thread_join (thread1);
g_thread_join (thread2);
}
int
main (int argc,
char **argv)
{
setlocale (LC_ALL, "");
g_test_init (&argc, &argv, NULL);
g_test_add ("/repo/hash", Fixture, NULL, setup,
test_repo_hash, teardown);
g_test_add ("/repo/hash/closed", Fixture, NULL, setup,
test_repo_hash_closed, teardown);
g_test_add ("/repo/equal", Fixture, NULL, setup,
test_repo_equal, teardown);
g_test_add ("/repo/get_min_free_space", Fixture, NULL, setup,
test_repo_get_min_free_space, teardown);
g_test_add ("/repo/write_regfile_api", Fixture, NULL, setup,
test_write_regfile_api, teardown);
g_test_add ("/repo/autolock", Fixture, NULL, setup,
test_repo_autolock, teardown);
g_test_add ("/repo/lock/single", Fixture, NULL, lock_setup,
test_repo_lock_single, teardown);
g_test_add ("/repo/lock/unlock-never-locked", Fixture, NULL, lock_setup,
test_repo_lock_unlock_never_locked, teardown);
g_test_add ("/repo/lock/double-unlock", Fixture, NULL, lock_setup,
test_repo_lock_double_unlock, teardown);
g_test_add ("/repo/lock/unlock-wrong-type", Fixture, NULL, lock_setup,
test_repo_lock_unlock_wrong_type, teardown);
g_test_add ("/repo/lock/multi-repo", Fixture, NULL, lock_setup,
test_repo_lock_multi_repo, teardown);
g_test_add ("/repo/lock/multi-thread", Fixture, NULL, lock_setup,
test_repo_lock_multi_thread, teardown);
return g_test_run ();
}