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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <fcntl.h>
#include <unistd.h>
#include "sd-id128.h"
#include "sd-journal.h"
#include "alloc-util.h"
#include "chattr-util.h"
#include "io-util.h"
#include "journal-vacuum.h"
#include "log.h"
#include "managed-journal-file.h"
#include "parse-util.h"
#include "rm-rf.h"
#include "tests.h"
/* This program tests skipping around in a multi-file journal. */
static bool arg_keep = false;
_noreturn_ static void log_assert_errno(const char *text, int error, const char *file, unsigned line, const char *func) {
log_internal(LOG_CRIT, error, file, line, func,
"'%s' failed at %s:%u (%s): %m", text, file, line, func);
abort();
}
#define assert_ret(expr) \
do { \
int _r_ = (expr); \
if (_unlikely_(_r_ < 0)) \
log_assert_errno(#expr, -_r_, PROJECT_FILE, __LINE__, __PRETTY_FUNCTION__); \
} while (false)
static ManagedJournalFile *test_open(const char *name) {
_cleanup_(mmap_cache_unrefp) MMapCache *m = NULL;
ManagedJournalFile *f;
m = mmap_cache_new();
assert_se(m != NULL);
assert_ret(managed_journal_file_open(-1, name, O_RDWR|O_CREAT, JOURNAL_COMPRESS, 0644, UINT64_MAX, NULL, m, NULL, NULL, &f));
return f;
}
static void test_close(ManagedJournalFile *f) {
(void) managed_journal_file_close(f);
}
static void append_number(ManagedJournalFile *f, int n, uint64_t *seqnum) {
char *p;
dual_timestamp ts;
static dual_timestamp previous_ts = {};
struct iovec iovec[1];
dual_timestamp_get(&ts);
if (ts.monotonic <= previous_ts.monotonic)
ts.monotonic = previous_ts.monotonic + 1;
if (ts.realtime <= previous_ts.realtime)
ts.realtime = previous_ts.realtime + 1;
previous_ts = ts;
assert_se(asprintf(&p, "NUMBER=%d", n) >= 0);
iovec[0] = IOVEC_MAKE_STRING(p);
assert_ret(journal_file_append_entry(f->file, &ts, NULL, iovec, 1, seqnum, NULL, NULL));
free(p);
}
static void test_check_number(sd_journal *j, int n) {
const void *d;
_cleanup_free_ char *k;
size_t l;
int x;
assert_ret(sd_journal_get_data(j, "NUMBER", &d, &l));
assert_se(k = strndup(d, l));
printf("%s\n", k);
assert_se(safe_atoi(k + 7, &x) >= 0);
assert_se(n == x);
}
static void test_check_numbers_down(sd_journal *j, int count) {
int i;
for (i = 1; i <= count; i++) {
int r;
test_check_number(j, i);
assert_ret(r = sd_journal_next(j));
if (i == count)
assert_se(r == 0);
else
assert_se(r == 1);
}
}
static void test_check_numbers_up(sd_journal *j, int count) {
for (int i = count; i >= 1; i--) {
int r;
test_check_number(j, i);
assert_ret(r = sd_journal_previous(j));
if (i == 1)
assert_se(r == 0);
else
assert_se(r == 1);
}
}
static void setup_sequential(void) {
ManagedJournalFile *one, *two;
one = test_open("one.journal");
two = test_open("two.journal");
append_number(one, 1, NULL);
append_number(one, 2, NULL);
append_number(two, 3, NULL);
append_number(two, 4, NULL);
test_close(one);
test_close(two);
}
static void setup_interleaved(void) {
ManagedJournalFile *one, *two;
one = test_open("one.journal");
two = test_open("two.journal");
append_number(one, 1, NULL);
append_number(two, 2, NULL);
append_number(one, 3, NULL);
append_number(two, 4, NULL);
test_close(one);
test_close(two);
}
static void mkdtemp_chdir_chattr(char *path) {
assert_se(mkdtemp(path));
assert_se(chdir(path) >= 0);
/* Speed up things a bit on btrfs, ensuring that CoW is turned off for all files created in our
* directory during the test run */
(void) chattr_path(path, FS_NOCOW_FL, FS_NOCOW_FL, NULL);
}
static void test_skip_one(void (*setup)(void)) {
char t[] = "/var/tmp/journal-skip-XXXXXX";
sd_journal *j;
int r;
mkdtemp_chdir_chattr(t);
setup();
/* Seek to head, iterate down.
*/
assert_ret(sd_journal_open_directory(&j, t, 0));
assert_ret(sd_journal_seek_head(j));
assert_ret(sd_journal_next(j));
test_check_numbers_down(j, 4);
sd_journal_close(j);
/* Seek to tail, iterate up.
*/
assert_ret(sd_journal_open_directory(&j, t, 0));
assert_ret(sd_journal_seek_tail(j));
assert_ret(sd_journal_previous(j));
test_check_numbers_up(j, 4);
sd_journal_close(j);
/* Seek to tail, skip to head, iterate down.
*/
assert_ret(sd_journal_open_directory(&j, t, 0));
assert_ret(sd_journal_seek_tail(j));
assert_ret(r = sd_journal_previous_skip(j, 4));
assert_se(r == 4);
test_check_numbers_down(j, 4);
sd_journal_close(j);
/* Seek to head, skip to tail, iterate up.
*/
assert_ret(sd_journal_open_directory(&j, t, 0));
assert_ret(sd_journal_seek_head(j));
assert_ret(r = sd_journal_next_skip(j, 4));
assert_se(r == 4);
test_check_numbers_up(j, 4);
sd_journal_close(j);
log_info("Done...");
if (arg_keep)
log_info("Not removing %s", t);
else {
journal_directory_vacuum(".", 3000000, 0, 0, NULL, true);
assert_se(rm_rf(t, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
}
puts("------------------------------------------------------------");
}
TEST(skip) {
test_skip_one(setup_sequential);
test_skip_one(setup_interleaved);
}
static void test_sequence_numbers_one(void) {
_cleanup_(mmap_cache_unrefp) MMapCache *m = NULL;
char t[] = "/var/tmp/journal-seq-XXXXXX";
ManagedJournalFile *one, *two;
uint64_t seqnum = 0;
sd_id128_t seqnum_id;
m = mmap_cache_new();
assert_se(m != NULL);
mkdtemp_chdir_chattr(t);
assert_se(managed_journal_file_open(-1, "one.journal", O_RDWR|O_CREAT, JOURNAL_COMPRESS, 0644,
UINT64_MAX, NULL, m, NULL, NULL, &one) == 0);
append_number(one, 1, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 1);
append_number(one, 2, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 2);
assert_se(one->file->header->state == STATE_ONLINE);
assert_se(!sd_id128_equal(one->file->header->file_id, one->file->header->machine_id));
assert_se(!sd_id128_equal(one->file->header->file_id, one->file->header->boot_id));
assert_se(sd_id128_equal(one->file->header->file_id, one->file->header->seqnum_id));
memcpy(&seqnum_id, &one->file->header->seqnum_id, sizeof(sd_id128_t));
assert_se(managed_journal_file_open(-1, "two.journal", O_RDWR|O_CREAT, JOURNAL_COMPRESS, 0644,
UINT64_MAX, NULL, m, NULL, one, &two) == 0);
assert_se(two->file->header->state == STATE_ONLINE);
assert_se(!sd_id128_equal(two->file->header->file_id, one->file->header->file_id));
assert_se(sd_id128_equal(one->file->header->machine_id, one->file->header->machine_id));
assert_se(sd_id128_equal(one->file->header->boot_id, one->file->header->boot_id));
assert_se(sd_id128_equal(one->file->header->seqnum_id, one->file->header->seqnum_id));
append_number(two, 3, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 3);
append_number(two, 4, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 4);
test_close(two);
append_number(one, 5, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 5);
append_number(one, 6, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 6);
test_close(one);
/* If the machine-id is not initialized, the header file verification
* (which happens when re-opening a journal file) will fail. */
if (sd_id128_get_machine(NULL) >= 0) {
/* restart server */
seqnum = 0;
assert_se(managed_journal_file_open(-1, "two.journal", O_RDWR, JOURNAL_COMPRESS, 0,
UINT64_MAX, NULL, m, NULL, NULL, &two) == 0);
assert_se(sd_id128_equal(two->file->header->seqnum_id, seqnum_id));
append_number(two, 7, &seqnum);
printf("seqnum=%"PRIu64"\n", seqnum);
assert_se(seqnum == 5);
/* So..., here we have the same seqnum in two files with the
* same seqnum_id. */
test_close(two);
}
log_info("Done...");
if (arg_keep)
log_info("Not removing %s", t);
else {
journal_directory_vacuum(".", 3000000, 0, 0, NULL, true);
assert_se(rm_rf(t, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
}
}
TEST(sequence_numbers) {
assert_se(setenv("SYSTEMD_JOURNAL_COMPACT", "0", 1) >= 0);
test_sequence_numbers_one();
assert_se(setenv("SYSTEMD_JOURNAL_COMPACT", "1", 1) >= 0);
test_sequence_numbers_one();
}
static int intro(void) {
/* managed_journal_file_open requires a valid machine id */
if (access("/etc/machine-id", F_OK) != 0)
return log_tests_skipped("/etc/machine-id not found");
arg_keep = saved_argc > 1;
return EXIT_SUCCESS;
}
DEFINE_TEST_MAIN_WITH_INTRO(LOG_DEBUG, intro);
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