2fa4092c28
Instead of outputting "5h 55s 50ms 3us" we'll now output "5h 55.050003s". Also, while outputting the accuracy is configurable. Basically we now try use "dot notation" for all time values > 1min. For >= 1s we use 's' as unit, otherwise for >= 1ms we use 'ms' as unit, and finally 'us'. This should give reasonably values in most cases.
148 lines
4.4 KiB
C
148 lines
4.4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "util.h"
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#include "log.h"
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#include "journal-file.h"
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#include "journal-verify.h"
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#include "journal-authenticate.h"
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#define N_ENTRIES 6000
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#define RANDOM_RANGE 77
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static void bit_toggle(const char *fn, uint64_t p) {
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uint8_t b;
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ssize_t r;
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int fd;
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fd = open(fn, O_RDWR|O_CLOEXEC);
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assert(fd >= 0);
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r = pread(fd, &b, 1, p/8);
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assert(r == 1);
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b ^= 1 << (p % 8);
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r = pwrite(fd, &b, 1, p/8);
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assert(r == 1);
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close_nointr_nofail(fd);
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}
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static int raw_verify(const char *fn, const char *verification_key) {
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JournalFile *f;
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int r;
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r = journal_file_open(fn, O_RDONLY, 0666, true, !!verification_key, NULL, NULL, NULL, &f);
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if (r < 0)
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return r;
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r = journal_file_verify(f, verification_key, NULL, NULL, NULL, false);
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journal_file_close(f);
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return r;
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}
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int main(int argc, char *argv[]) {
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char t[] = "/tmp/journal-XXXXXX";
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unsigned n;
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JournalFile *f;
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const char *verification_key = argv[1];
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usec_t from = 0, to = 0, total = 0;
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char a[FORMAT_TIMESTAMP_MAX];
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char b[FORMAT_TIMESTAMP_MAX];
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char c[FORMAT_TIMESPAN_MAX];
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struct stat st;
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uint64_t p;
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log_set_max_level(LOG_DEBUG);
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assert_se(mkdtemp(t));
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assert_se(chdir(t) >= 0);
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log_info("Generating...");
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assert_se(journal_file_open("test.journal", O_RDWR|O_CREAT, 0666, true, !!verification_key, NULL, NULL, NULL, &f) == 0);
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for (n = 0; n < N_ENTRIES; n++) {
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struct iovec iovec;
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struct dual_timestamp ts;
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char *test;
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dual_timestamp_get(&ts);
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assert_se(asprintf(&test, "RANDOM=%lu", random() % RANDOM_RANGE));
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iovec.iov_base = (void*) test;
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iovec.iov_len = strlen(test);
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assert_se(journal_file_append_entry(f, &ts, &iovec, 1, NULL, NULL, NULL) == 0);
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free(test);
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}
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journal_file_close(f);
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log_info("Verifying...");
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assert_se(journal_file_open("test.journal", O_RDONLY, 0666, true, !!verification_key, NULL, NULL, NULL, &f) == 0);
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/* journal_file_print_header(f); */
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journal_file_dump(f);
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assert_se(journal_file_verify(f, verification_key, &from, &to, &total, true) >= 0);
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if (verification_key && JOURNAL_HEADER_SEALED(f->header)) {
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log_info("=> Validated from %s to %s, %s missing",
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format_timestamp(a, sizeof(a), from),
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format_timestamp(b, sizeof(b), to),
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format_timespan(c, sizeof(c), total > to ? total - to : 0, 0));
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}
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journal_file_close(f);
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if (verification_key) {
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log_info("Toggling bits...");
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assert_se(stat("test.journal", &st) >= 0);
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for (p = 38448*8+0; p < ((uint64_t) st.st_size * 8); p ++) {
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bit_toggle("test.journal", p);
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log_info("[ %llu+%llu]", (unsigned long long) p / 8, (unsigned long long) p % 8);
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if (raw_verify("test.journal", verification_key) >= 0)
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log_notice(ANSI_HIGHLIGHT_RED_ON ">>>> %llu (bit %llu) can be toggled without detection." ANSI_HIGHLIGHT_OFF, (unsigned long long) p / 8, (unsigned long long) p % 8);
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bit_toggle("test.journal", p);
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}
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}
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log_info("Exiting...");
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assert_se(rm_rf_dangerous(t, false, true, false) >= 0);
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return 0;
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}
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