2010 lines
69 KiB
C
2010 lines
69 KiB
C
/***
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This file is part of systemd.
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Copyright 2011 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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#ifdef HAVE_SELINUX
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#include <selinux/selinux.h>
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#endif
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/signalfd.h>
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#include <sys/statvfs.h>
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#include <linux/sockios.h>
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#include "libudev.h"
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#include "sd-daemon.h"
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#include "sd-journal.h"
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#include "sd-messages.h"
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#include "acl-util.h"
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#include "alloc-util.h"
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#include "audit-util.h"
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#include "cgroup-util.h"
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#include "conf-parser.h"
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#include "dirent-util.h"
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#include "extract-word.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "formats-util.h"
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#include "fs-util.h"
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#include "hashmap.h"
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#include "hostname-util.h"
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#include "io-util.h"
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#include "journal-authenticate.h"
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#include "journal-file.h"
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#include "journal-internal.h"
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#include "journal-vacuum.h"
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#include "journald-audit.h"
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#include "journald-kmsg.h"
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#include "journald-native.h"
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#include "journald-rate-limit.h"
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#include "journald-server.h"
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#include "journald-stream.h"
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#include "journald-syslog.h"
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#include "missing.h"
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#include "mkdir.h"
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#include "parse-util.h"
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#include "proc-cmdline.h"
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#include "process-util.h"
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#include "rm-rf.h"
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#include "selinux-util.h"
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#include "signal-util.h"
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#include "socket-util.h"
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#include "stdio-util.h"
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#include "string-table.h"
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#include "string-util.h"
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#include "user-util.h"
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#include "log.h"
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#define USER_JOURNALS_MAX 1024
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#define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE)
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#define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC)
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#define DEFAULT_RATE_LIMIT_BURST 1000
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#define DEFAULT_MAX_FILE_USEC USEC_PER_MONTH
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#define RECHECK_SPACE_USEC (30*USEC_PER_SEC)
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#define NOTIFY_SNDBUF_SIZE (8*1024*1024)
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/* The period to insert between posting changes for coalescing */
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#define POST_CHANGE_TIMER_INTERVAL_USEC (250*USEC_PER_MSEC)
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static int determine_space_for(
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Server *s,
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JournalMetrics *metrics,
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const char *path,
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const char *name,
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bool verbose,
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bool patch_min_use,
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uint64_t *available,
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uint64_t *limit) {
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uint64_t sum = 0, ss_avail, avail;
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_cleanup_closedir_ DIR *d = NULL;
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struct dirent *de;
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struct statvfs ss;
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const char *p;
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usec_t ts;
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assert(s);
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assert(metrics);
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assert(path);
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assert(name);
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ts = now(CLOCK_MONOTONIC);
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if (!verbose && s->cached_space_timestamp + RECHECK_SPACE_USEC > ts) {
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if (available)
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*available = s->cached_space_available;
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if (limit)
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*limit = s->cached_space_limit;
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return 0;
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}
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p = strjoina(path, SERVER_MACHINE_ID(s));
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d = opendir(p);
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if (!d)
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return log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, "Failed to open %s: %m", p);
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if (fstatvfs(dirfd(d), &ss) < 0)
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return log_error_errno(errno, "Failed to fstatvfs(%s): %m", p);
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FOREACH_DIRENT_ALL(de, d, break) {
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struct stat st;
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if (!endswith(de->d_name, ".journal") &&
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!endswith(de->d_name, ".journal~"))
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continue;
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if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
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log_debug_errno(errno, "Failed to stat %s/%s, ignoring: %m", p, de->d_name);
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continue;
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}
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if (!S_ISREG(st.st_mode))
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continue;
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sum += (uint64_t) st.st_blocks * 512UL;
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}
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/* If requested, then let's bump the min_use limit to the
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* current usage on disk. We do this when starting up and
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* first opening the journal files. This way sudden spikes in
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* disk usage will not cause journald to vacuum files without
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* bounds. Note that this means that only a restart of
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* journald will make it reset this value. */
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if (patch_min_use)
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metrics->min_use = MAX(metrics->min_use, sum);
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ss_avail = ss.f_bsize * ss.f_bavail;
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avail = LESS_BY(ss_avail, metrics->keep_free);
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s->cached_space_limit = MIN(MAX(sum + avail, metrics->min_use), metrics->max_use);
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s->cached_space_available = LESS_BY(s->cached_space_limit, sum);
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s->cached_space_timestamp = ts;
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if (verbose) {
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char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX],
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fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX], fb6[FORMAT_BYTES_MAX];
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format_bytes(fb1, sizeof(fb1), sum);
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format_bytes(fb2, sizeof(fb2), metrics->max_use);
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format_bytes(fb3, sizeof(fb3), metrics->keep_free);
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format_bytes(fb4, sizeof(fb4), ss_avail);
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format_bytes(fb5, sizeof(fb5), s->cached_space_limit);
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format_bytes(fb6, sizeof(fb6), s->cached_space_available);
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server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE,
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LOG_MESSAGE("%s (%s) is %s, max %s, %s free.",
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name, path, fb1, fb5, fb6),
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"JOURNAL_NAME=%s", name,
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"JOURNAL_PATH=%s", path,
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"CURRENT_USE=%"PRIu64, sum,
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"CURRENT_USE_PRETTY=%s", fb1,
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"MAX_USE=%"PRIu64, metrics->max_use,
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"MAX_USE_PRETTY=%s", fb2,
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"DISK_KEEP_FREE=%"PRIu64, metrics->keep_free,
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"DISK_KEEP_FREE_PRETTY=%s", fb3,
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"DISK_AVAILABLE=%"PRIu64, ss_avail,
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"DISK_AVAILABLE_PRETTY=%s", fb4,
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"LIMIT=%"PRIu64, s->cached_space_limit,
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"LIMIT_PRETTY=%s", fb5,
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"AVAILABLE=%"PRIu64, s->cached_space_available,
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"AVAILABLE_PRETTY=%s", fb6,
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NULL);
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}
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if (available)
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*available = s->cached_space_available;
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if (limit)
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*limit = s->cached_space_limit;
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return 1;
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}
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static int determine_space(Server *s, bool verbose, bool patch_min_use, uint64_t *available, uint64_t *limit) {
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JournalMetrics *metrics;
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const char *path, *name;
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assert(s);
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if (s->system_journal) {
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path = "/var/log/journal/";
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metrics = &s->system_metrics;
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name = "System journal";
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} else {
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path = "/run/log/journal/";
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metrics = &s->runtime_metrics;
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name = "Runtime journal";
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}
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return determine_space_for(s, metrics, path, name, verbose, patch_min_use, available, limit);
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}
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static void server_add_acls(JournalFile *f, uid_t uid) {
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#ifdef HAVE_ACL
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int r;
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#endif
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assert(f);
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#ifdef HAVE_ACL
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if (uid <= SYSTEM_UID_MAX)
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return;
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r = add_acls_for_user(f->fd, uid);
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if (r < 0)
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log_warning_errno(r, "Failed to set ACL on %s, ignoring: %m", f->path);
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#endif
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}
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static int open_journal(
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Server *s,
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bool reliably,
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const char *fname,
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int flags,
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bool seal,
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JournalMetrics *metrics,
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JournalFile **ret) {
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int r;
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JournalFile *f;
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assert(s);
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assert(fname);
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assert(ret);
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if (reliably)
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r = journal_file_open_reliably(fname, flags, 0640, s->compress, seal, metrics, s->mmap, s->deferred_closes, NULL, &f);
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else
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r = journal_file_open(fname, flags, 0640, s->compress, seal, metrics, s->mmap, s->deferred_closes, NULL, &f);
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if (r < 0)
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return r;
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r = journal_file_enable_post_change_timer(f, s->event, POST_CHANGE_TIMER_INTERVAL_USEC);
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if (r < 0) {
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(void) journal_file_close(f);
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return r;
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}
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*ret = f;
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return r;
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}
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static JournalFile* find_journal(Server *s, uid_t uid) {
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_cleanup_free_ char *p = NULL;
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int r;
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JournalFile *f;
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sd_id128_t machine;
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assert(s);
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/* We split up user logs only on /var, not on /run. If the
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* runtime file is open, we write to it exclusively, in order
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* to guarantee proper order as soon as we flush /run to
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* /var and close the runtime file. */
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if (s->runtime_journal)
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return s->runtime_journal;
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if (uid <= SYSTEM_UID_MAX)
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return s->system_journal;
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r = sd_id128_get_machine(&machine);
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if (r < 0)
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return s->system_journal;
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f = ordered_hashmap_get(s->user_journals, UID_TO_PTR(uid));
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if (f)
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return f;
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if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-"UID_FMT".journal",
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SD_ID128_FORMAT_VAL(machine), uid) < 0)
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return s->system_journal;
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while (ordered_hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) {
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/* Too many open? Then let's close one */
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f = ordered_hashmap_steal_first(s->user_journals);
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assert(f);
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(void) journal_file_close(f);
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}
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r = open_journal(s, true, p, O_RDWR|O_CREAT, s->seal, &s->system_metrics, &f);
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if (r < 0)
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return s->system_journal;
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server_add_acls(f, uid);
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r = ordered_hashmap_put(s->user_journals, UID_TO_PTR(uid), f);
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if (r < 0) {
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(void) journal_file_close(f);
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return s->system_journal;
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}
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return f;
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}
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static int do_rotate(
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Server *s,
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JournalFile **f,
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const char* name,
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bool seal,
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uint32_t uid) {
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int r;
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assert(s);
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if (!*f)
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return -EINVAL;
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r = journal_file_rotate(f, s->compress, seal, s->deferred_closes);
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if (r < 0)
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if (*f)
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log_error_errno(r, "Failed to rotate %s: %m", (*f)->path);
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else
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log_error_errno(r, "Failed to create new %s journal: %m", name);
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else
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server_add_acls(*f, uid);
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return r;
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}
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void server_rotate(Server *s) {
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JournalFile *f;
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void *k;
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Iterator i;
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int r;
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log_debug("Rotating...");
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(void) do_rotate(s, &s->runtime_journal, "runtime", false, 0);
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(void) do_rotate(s, &s->system_journal, "system", s->seal, 0);
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ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {
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r = do_rotate(s, &f, "user", s->seal, PTR_TO_UID(k));
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if (r >= 0)
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ordered_hashmap_replace(s->user_journals, k, f);
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else if (!f)
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/* Old file has been closed and deallocated */
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ordered_hashmap_remove(s->user_journals, k);
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}
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/* Perform any deferred closes which aren't still offlining. */
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SET_FOREACH(f, s->deferred_closes, i)
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if (!journal_file_is_offlining(f)) {
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(void) set_remove(s->deferred_closes, f);
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(void) journal_file_close(f);
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}
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}
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void server_sync(Server *s) {
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JournalFile *f;
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Iterator i;
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int r;
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if (s->system_journal) {
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r = journal_file_set_offline(s->system_journal, false);
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if (r < 0)
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log_warning_errno(r, "Failed to sync system journal, ignoring: %m");
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}
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ORDERED_HASHMAP_FOREACH(f, s->user_journals, i) {
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r = journal_file_set_offline(f, false);
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if (r < 0)
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log_warning_errno(r, "Failed to sync user journal, ignoring: %m");
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}
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if (s->sync_event_source) {
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r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_OFF);
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if (r < 0)
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log_error_errno(r, "Failed to disable sync timer source: %m");
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}
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s->sync_scheduled = false;
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}
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static void do_vacuum(
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Server *s,
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JournalFile *f,
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JournalMetrics *metrics,
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const char *path,
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const char *name,
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bool verbose,
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bool patch_min_use) {
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const char *p;
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uint64_t limit;
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int r;
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assert(s);
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assert(metrics);
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assert(path);
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assert(name);
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if (!f)
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return;
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p = strjoina(path, SERVER_MACHINE_ID(s));
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limit = metrics->max_use;
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(void) determine_space_for(s, metrics, path, name, verbose, patch_min_use, NULL, &limit);
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r = journal_directory_vacuum(p, limit, metrics->n_max_files, s->max_retention_usec, &s->oldest_file_usec, verbose);
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if (r < 0 && r != -ENOENT)
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log_warning_errno(r, "Failed to vacuum %s, ignoring: %m", p);
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}
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int server_vacuum(Server *s, bool verbose, bool patch_min_use) {
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assert(s);
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log_debug("Vacuuming...");
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s->oldest_file_usec = 0;
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do_vacuum(s, s->system_journal, &s->system_metrics, "/var/log/journal/", "System journal", verbose, patch_min_use);
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do_vacuum(s, s->runtime_journal, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", verbose, patch_min_use);
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s->cached_space_limit = 0;
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s->cached_space_available = 0;
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s->cached_space_timestamp = 0;
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return 0;
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}
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static void server_cache_machine_id(Server *s) {
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sd_id128_t id;
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int r;
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assert(s);
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r = sd_id128_get_machine(&id);
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if (r < 0)
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return;
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sd_id128_to_string(id, stpcpy(s->machine_id_field, "_MACHINE_ID="));
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}
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static void server_cache_boot_id(Server *s) {
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sd_id128_t id;
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int r;
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assert(s);
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r = sd_id128_get_boot(&id);
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if (r < 0)
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return;
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sd_id128_to_string(id, stpcpy(s->boot_id_field, "_BOOT_ID="));
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}
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static void server_cache_hostname(Server *s) {
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_cleanup_free_ char *t = NULL;
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char *x;
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assert(s);
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t = gethostname_malloc();
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if (!t)
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return;
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x = strappend("_HOSTNAME=", t);
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if (!x)
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return;
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free(s->hostname_field);
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s->hostname_field = x;
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}
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static bool shall_try_append_again(JournalFile *f, int r) {
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/* -E2BIG Hit configured limit
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-EFBIG Hit fs limit
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-EDQUOT Quota limit hit
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-ENOSPC Disk full
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-EIO I/O error of some kind (mmap)
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-EHOSTDOWN Other machine
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-EBUSY Unclean shutdown
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-EPROTONOSUPPORT Unsupported feature
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-EBADMSG Corrupted
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-ENODATA Truncated
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-ESHUTDOWN Already archived
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-EIDRM Journal file has been deleted */
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if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC)
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log_debug("%s: Allocation limit reached, rotating.", f->path);
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else if (r == -EHOSTDOWN)
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log_info("%s: Journal file from other machine, rotating.", f->path);
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else if (r == -EBUSY)
|
|
log_info("%s: Unclean shutdown, rotating.", f->path);
|
|
else if (r == -EPROTONOSUPPORT)
|
|
log_info("%s: Unsupported feature, rotating.", f->path);
|
|
else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN)
|
|
log_warning("%s: Journal file corrupted, rotating.", f->path);
|
|
else if (r == -EIO)
|
|
log_warning("%s: IO error, rotating.", f->path);
|
|
else if (r == -EIDRM)
|
|
log_warning("%s: Journal file has been deleted, rotating.", f->path);
|
|
else
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) {
|
|
JournalFile *f;
|
|
bool vacuumed = false;
|
|
int r;
|
|
|
|
assert(s);
|
|
assert(iovec);
|
|
assert(n > 0);
|
|
|
|
f = find_journal(s, uid);
|
|
if (!f)
|
|
return;
|
|
|
|
if (journal_file_rotate_suggested(f, s->max_file_usec)) {
|
|
log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path);
|
|
server_rotate(s);
|
|
server_vacuum(s, false, false);
|
|
vacuumed = true;
|
|
|
|
f = find_journal(s, uid);
|
|
if (!f)
|
|
return;
|
|
}
|
|
|
|
r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);
|
|
if (r >= 0) {
|
|
server_schedule_sync(s, priority);
|
|
return;
|
|
}
|
|
|
|
if (vacuumed || !shall_try_append_again(f, r)) {
|
|
log_error_errno(r, "Failed to write entry (%d items, %zu bytes), ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n));
|
|
return;
|
|
}
|
|
|
|
server_rotate(s);
|
|
server_vacuum(s, false, false);
|
|
|
|
f = find_journal(s, uid);
|
|
if (!f)
|
|
return;
|
|
|
|
log_debug("Retrying write.");
|
|
r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);
|
|
if (r < 0)
|
|
log_error_errno(r, "Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n));
|
|
else
|
|
server_schedule_sync(s, priority);
|
|
}
|
|
|
|
static void dispatch_message_real(
|
|
Server *s,
|
|
struct iovec *iovec, unsigned n, unsigned m,
|
|
const struct ucred *ucred,
|
|
const struct timeval *tv,
|
|
const char *label, size_t label_len,
|
|
const char *unit_id,
|
|
int priority,
|
|
pid_t object_pid) {
|
|
|
|
char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)],
|
|
uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)],
|
|
gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)],
|
|
owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)],
|
|
source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)],
|
|
o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)],
|
|
o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)],
|
|
o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)];
|
|
uid_t object_uid;
|
|
gid_t object_gid;
|
|
char *x;
|
|
int r;
|
|
char *t, *c;
|
|
uid_t realuid = 0, owner = 0, journal_uid;
|
|
bool owner_valid = false;
|
|
#ifdef HAVE_AUDIT
|
|
char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],
|
|
audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)],
|
|
o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],
|
|
o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)];
|
|
|
|
uint32_t audit;
|
|
uid_t loginuid;
|
|
#endif
|
|
|
|
assert(s);
|
|
assert(iovec);
|
|
assert(n > 0);
|
|
assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m);
|
|
|
|
if (ucred) {
|
|
realuid = ucred->uid;
|
|
|
|
sprintf(pid, "_PID="PID_FMT, ucred->pid);
|
|
IOVEC_SET_STRING(iovec[n++], pid);
|
|
|
|
sprintf(uid, "_UID="UID_FMT, ucred->uid);
|
|
IOVEC_SET_STRING(iovec[n++], uid);
|
|
|
|
sprintf(gid, "_GID="GID_FMT, ucred->gid);
|
|
IOVEC_SET_STRING(iovec[n++], gid);
|
|
|
|
r = get_process_comm(ucred->pid, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("_COMM=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
r = get_process_exe(ucred->pid, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("_EXE=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
r = get_process_cmdline(ucred->pid, 0, false, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("_CMDLINE=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
r = get_process_capeff(ucred->pid, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("_CAP_EFFECTIVE=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
#ifdef HAVE_AUDIT
|
|
r = audit_session_from_pid(ucred->pid, &audit);
|
|
if (r >= 0) {
|
|
sprintf(audit_session, "_AUDIT_SESSION=%"PRIu32, audit);
|
|
IOVEC_SET_STRING(iovec[n++], audit_session);
|
|
}
|
|
|
|
r = audit_loginuid_from_pid(ucred->pid, &loginuid);
|
|
if (r >= 0) {
|
|
sprintf(audit_loginuid, "_AUDIT_LOGINUID="UID_FMT, loginuid);
|
|
IOVEC_SET_STRING(iovec[n++], audit_loginuid);
|
|
}
|
|
#endif
|
|
|
|
r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &c);
|
|
if (r >= 0) {
|
|
char *session = NULL;
|
|
|
|
x = strjoina("_SYSTEMD_CGROUP=", c);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
|
|
r = cg_path_get_session(c, &t);
|
|
if (r >= 0) {
|
|
session = strjoina("_SYSTEMD_SESSION=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], session);
|
|
}
|
|
|
|
if (cg_path_get_owner_uid(c, &owner) >= 0) {
|
|
owner_valid = true;
|
|
|
|
sprintf(owner_uid, "_SYSTEMD_OWNER_UID="UID_FMT, owner);
|
|
IOVEC_SET_STRING(iovec[n++], owner_uid);
|
|
}
|
|
|
|
if (cg_path_get_unit(c, &t) >= 0) {
|
|
x = strjoina("_SYSTEMD_UNIT=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
} else if (unit_id && !session) {
|
|
x = strjoina("_SYSTEMD_UNIT=", unit_id);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
if (cg_path_get_user_unit(c, &t) >= 0) {
|
|
x = strjoina("_SYSTEMD_USER_UNIT=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
} else if (unit_id && session) {
|
|
x = strjoina("_SYSTEMD_USER_UNIT=", unit_id);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
if (cg_path_get_slice(c, &t) >= 0) {
|
|
x = strjoina("_SYSTEMD_SLICE=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
free(c);
|
|
} else if (unit_id) {
|
|
x = strjoina("_SYSTEMD_UNIT=", unit_id);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
#ifdef HAVE_SELINUX
|
|
if (mac_selinux_have()) {
|
|
if (label) {
|
|
x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1);
|
|
|
|
*((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0;
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
} else {
|
|
security_context_t con;
|
|
|
|
if (getpidcon(ucred->pid, &con) >= 0) {
|
|
x = strjoina("_SELINUX_CONTEXT=", con);
|
|
|
|
freecon(con);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
assert(n <= m);
|
|
|
|
if (object_pid) {
|
|
r = get_process_uid(object_pid, &object_uid);
|
|
if (r >= 0) {
|
|
sprintf(o_uid, "OBJECT_UID="UID_FMT, object_uid);
|
|
IOVEC_SET_STRING(iovec[n++], o_uid);
|
|
}
|
|
|
|
r = get_process_gid(object_pid, &object_gid);
|
|
if (r >= 0) {
|
|
sprintf(o_gid, "OBJECT_GID="GID_FMT, object_gid);
|
|
IOVEC_SET_STRING(iovec[n++], o_gid);
|
|
}
|
|
|
|
r = get_process_comm(object_pid, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("OBJECT_COMM=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
r = get_process_exe(object_pid, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("OBJECT_EXE=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
r = get_process_cmdline(object_pid, 0, false, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("OBJECT_CMDLINE=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
#ifdef HAVE_AUDIT
|
|
r = audit_session_from_pid(object_pid, &audit);
|
|
if (r >= 0) {
|
|
sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%"PRIu32, audit);
|
|
IOVEC_SET_STRING(iovec[n++], o_audit_session);
|
|
}
|
|
|
|
r = audit_loginuid_from_pid(object_pid, &loginuid);
|
|
if (r >= 0) {
|
|
sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID="UID_FMT, loginuid);
|
|
IOVEC_SET_STRING(iovec[n++], o_audit_loginuid);
|
|
}
|
|
#endif
|
|
|
|
r = cg_pid_get_path_shifted(object_pid, s->cgroup_root, &c);
|
|
if (r >= 0) {
|
|
x = strjoina("OBJECT_SYSTEMD_CGROUP=", c);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
|
|
r = cg_path_get_session(c, &t);
|
|
if (r >= 0) {
|
|
x = strjoina("OBJECT_SYSTEMD_SESSION=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
if (cg_path_get_owner_uid(c, &owner) >= 0) {
|
|
sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID="UID_FMT, owner);
|
|
IOVEC_SET_STRING(iovec[n++], o_owner_uid);
|
|
}
|
|
|
|
if (cg_path_get_unit(c, &t) >= 0) {
|
|
x = strjoina("OBJECT_SYSTEMD_UNIT=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
if (cg_path_get_user_unit(c, &t) >= 0) {
|
|
x = strjoina("OBJECT_SYSTEMD_USER_UNIT=", t);
|
|
free(t);
|
|
IOVEC_SET_STRING(iovec[n++], x);
|
|
}
|
|
|
|
free(c);
|
|
}
|
|
}
|
|
assert(n <= m);
|
|
|
|
if (tv) {
|
|
sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv));
|
|
IOVEC_SET_STRING(iovec[n++], source_time);
|
|
}
|
|
|
|
/* Note that strictly speaking storing the boot id here is
|
|
* redundant since the entry includes this in-line
|
|
* anyway. However, we need this indexed, too. */
|
|
if (!isempty(s->boot_id_field))
|
|
IOVEC_SET_STRING(iovec[n++], s->boot_id_field);
|
|
|
|
if (!isempty(s->machine_id_field))
|
|
IOVEC_SET_STRING(iovec[n++], s->machine_id_field);
|
|
|
|
if (!isempty(s->hostname_field))
|
|
IOVEC_SET_STRING(iovec[n++], s->hostname_field);
|
|
|
|
assert(n <= m);
|
|
|
|
if (s->split_mode == SPLIT_UID && realuid > 0)
|
|
/* Split up strictly by any UID */
|
|
journal_uid = realuid;
|
|
else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0)
|
|
/* Split up by login UIDs. We do this only if the
|
|
* realuid is not root, in order not to accidentally
|
|
* leak privileged information to the user that is
|
|
* logged by a privileged process that is part of an
|
|
* unprivileged session. */
|
|
journal_uid = owner;
|
|
else
|
|
journal_uid = 0;
|
|
|
|
write_to_journal(s, journal_uid, iovec, n, priority);
|
|
}
|
|
|
|
void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {
|
|
char mid[11 + 32 + 1];
|
|
struct iovec iovec[N_IOVEC_META_FIELDS + 5 + N_IOVEC_PAYLOAD_FIELDS];
|
|
unsigned n = 0, m;
|
|
int r;
|
|
va_list ap;
|
|
struct ucred ucred = {};
|
|
|
|
assert(s);
|
|
assert(format);
|
|
|
|
assert_cc(3 == LOG_FAC(LOG_DAEMON));
|
|
IOVEC_SET_STRING(iovec[n++], "SYSLOG_FACILITY=3");
|
|
IOVEC_SET_STRING(iovec[n++], "SYSLOG_IDENTIFIER=systemd-journald");
|
|
|
|
IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver");
|
|
assert_cc(6 == LOG_INFO);
|
|
IOVEC_SET_STRING(iovec[n++], "PRIORITY=6");
|
|
|
|
if (!sd_id128_equal(message_id, SD_ID128_NULL)) {
|
|
snprintf(mid, sizeof(mid), LOG_MESSAGE_ID(message_id));
|
|
IOVEC_SET_STRING(iovec[n++], mid);
|
|
}
|
|
|
|
m = n;
|
|
|
|
va_start(ap, format);
|
|
r = log_format_iovec(iovec, ELEMENTSOF(iovec), &n, false, 0, format, ap);
|
|
/* Error handling below */
|
|
va_end(ap);
|
|
|
|
ucred.pid = getpid();
|
|
ucred.uid = getuid();
|
|
ucred.gid = getgid();
|
|
|
|
if (r >= 0)
|
|
dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0);
|
|
|
|
while (m < n)
|
|
free(iovec[m++].iov_base);
|
|
|
|
if (r < 0) {
|
|
/* We failed to format the message. Emit a warning instead. */
|
|
char buf[LINE_MAX];
|
|
|
|
xsprintf(buf, "MESSAGE=Entry printing failed: %s", strerror(-r));
|
|
|
|
n = 3;
|
|
IOVEC_SET_STRING(iovec[n++], "PRIORITY=4");
|
|
IOVEC_SET_STRING(iovec[n++], buf);
|
|
dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0);
|
|
}
|
|
}
|
|
|
|
void server_dispatch_message(
|
|
Server *s,
|
|
struct iovec *iovec, unsigned n, unsigned m,
|
|
const struct ucred *ucred,
|
|
const struct timeval *tv,
|
|
const char *label, size_t label_len,
|
|
const char *unit_id,
|
|
int priority,
|
|
pid_t object_pid) {
|
|
|
|
int rl, r;
|
|
_cleanup_free_ char *path = NULL;
|
|
uint64_t available = 0;
|
|
char *c;
|
|
|
|
assert(s);
|
|
assert(iovec || n == 0);
|
|
|
|
if (n == 0)
|
|
return;
|
|
|
|
if (LOG_PRI(priority) > s->max_level_store)
|
|
return;
|
|
|
|
/* Stop early in case the information will not be stored
|
|
* in a journal. */
|
|
if (s->storage == STORAGE_NONE)
|
|
return;
|
|
|
|
if (!ucred)
|
|
goto finish;
|
|
|
|
r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &path);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
/* example: /user/lennart/3/foobar
|
|
* /system/dbus.service/foobar
|
|
*
|
|
* So let's cut of everything past the third /, since that is
|
|
* where user directories start */
|
|
|
|
c = strchr(path, '/');
|
|
if (c) {
|
|
c = strchr(c+1, '/');
|
|
if (c) {
|
|
c = strchr(c+1, '/');
|
|
if (c)
|
|
*c = 0;
|
|
}
|
|
}
|
|
|
|
(void) determine_space(s, false, false, &available, NULL);
|
|
rl = journal_rate_limit_test(s->rate_limit, path, priority & LOG_PRIMASK, available);
|
|
if (rl == 0)
|
|
return;
|
|
|
|
/* Write a suppression message if we suppressed something */
|
|
if (rl > 1)
|
|
server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED,
|
|
LOG_MESSAGE("Suppressed %u messages from %s", rl - 1, path),
|
|
NULL);
|
|
|
|
finish:
|
|
dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid);
|
|
}
|
|
|
|
|
|
static int system_journal_open(Server *s, bool flush_requested) {
|
|
const char *fn;
|
|
int r = 0;
|
|
|
|
if (!s->system_journal &&
|
|
(s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) &&
|
|
(flush_requested
|
|
|| access("/run/systemd/journal/flushed", F_OK) >= 0)) {
|
|
|
|
/* If in auto mode: first try to create the machine
|
|
* path, but not the prefix.
|
|
*
|
|
* If in persistent mode: create /var/log/journal and
|
|
* the machine path */
|
|
|
|
if (s->storage == STORAGE_PERSISTENT)
|
|
(void) mkdir_p("/var/log/journal/", 0755);
|
|
|
|
fn = strjoina("/var/log/journal/", SERVER_MACHINE_ID(s));
|
|
(void) mkdir(fn, 0755);
|
|
|
|
fn = strjoina(fn, "/system.journal");
|
|
r = open_journal(s, true, fn, O_RDWR|O_CREAT, s->seal, &s->system_metrics, &s->system_journal);
|
|
if (r >= 0) {
|
|
server_add_acls(s->system_journal, 0);
|
|
(void) determine_space_for(s, &s->system_metrics, "/var/log/journal/", "System journal", true, true, NULL, NULL);
|
|
} else if (r < 0) {
|
|
if (r != -ENOENT && r != -EROFS)
|
|
log_warning_errno(r, "Failed to open system journal: %m");
|
|
|
|
r = 0;
|
|
}
|
|
}
|
|
|
|
if (!s->runtime_journal &&
|
|
(s->storage != STORAGE_NONE)) {
|
|
|
|
fn = strjoina("/run/log/journal/", SERVER_MACHINE_ID(s), "/system.journal");
|
|
|
|
if (s->system_journal) {
|
|
|
|
/* Try to open the runtime journal, but only
|
|
* if it already exists, so that we can flush
|
|
* it into the system journal */
|
|
|
|
r = open_journal(s, false, fn, O_RDWR, false, &s->runtime_metrics, &s->runtime_journal);
|
|
if (r < 0) {
|
|
if (r != -ENOENT)
|
|
log_warning_errno(r, "Failed to open runtime journal: %m");
|
|
|
|
r = 0;
|
|
}
|
|
|
|
} else {
|
|
|
|
/* OK, we really need the runtime journal, so create
|
|
* it if necessary. */
|
|
|
|
(void) mkdir("/run/log", 0755);
|
|
(void) mkdir("/run/log/journal", 0755);
|
|
(void) mkdir_parents(fn, 0750);
|
|
|
|
r = open_journal(s, true, fn, O_RDWR|O_CREAT, false, &s->runtime_metrics, &s->runtime_journal);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to open runtime journal: %m");
|
|
}
|
|
|
|
if (s->runtime_journal) {
|
|
server_add_acls(s->runtime_journal, 0);
|
|
(void) determine_space_for(s, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", true, true, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
int server_flush_to_var(Server *s) {
|
|
sd_id128_t machine;
|
|
sd_journal *j = NULL;
|
|
char ts[FORMAT_TIMESPAN_MAX];
|
|
usec_t start;
|
|
unsigned n = 0;
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
if (s->storage != STORAGE_AUTO &&
|
|
s->storage != STORAGE_PERSISTENT)
|
|
return 0;
|
|
|
|
if (!s->runtime_journal)
|
|
return 0;
|
|
|
|
(void) system_journal_open(s, true);
|
|
|
|
if (!s->system_journal)
|
|
return 0;
|
|
|
|
log_debug("Flushing to /var...");
|
|
|
|
start = now(CLOCK_MONOTONIC);
|
|
|
|
r = sd_id128_get_machine(&machine);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to read runtime journal: %m");
|
|
|
|
sd_journal_set_data_threshold(j, 0);
|
|
|
|
SD_JOURNAL_FOREACH(j) {
|
|
Object *o = NULL;
|
|
JournalFile *f;
|
|
|
|
f = j->current_file;
|
|
assert(f && f->current_offset > 0);
|
|
|
|
n++;
|
|
|
|
r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
|
|
if (r < 0) {
|
|
log_error_errno(r, "Can't read entry: %m");
|
|
goto finish;
|
|
}
|
|
|
|
r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
|
|
if (r >= 0)
|
|
continue;
|
|
|
|
if (!shall_try_append_again(s->system_journal, r)) {
|
|
log_error_errno(r, "Can't write entry: %m");
|
|
goto finish;
|
|
}
|
|
|
|
server_rotate(s);
|
|
server_vacuum(s, false, false);
|
|
|
|
if (!s->system_journal) {
|
|
log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful.");
|
|
r = -EIO;
|
|
goto finish;
|
|
}
|
|
|
|
log_debug("Retrying write.");
|
|
r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
|
|
if (r < 0) {
|
|
log_error_errno(r, "Can't write entry: %m");
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
r = 0;
|
|
|
|
finish:
|
|
journal_file_post_change(s->system_journal);
|
|
|
|
s->runtime_journal = journal_file_close(s->runtime_journal);
|
|
|
|
if (r >= 0)
|
|
(void) rm_rf("/run/log/journal", REMOVE_ROOT);
|
|
|
|
sd_journal_close(j);
|
|
|
|
server_driver_message(s, SD_ID128_NULL,
|
|
LOG_MESSAGE("Time spent on flushing to /var is %s for %u entries.",
|
|
format_timespan(ts, sizeof(ts), now(CLOCK_MONOTONIC) - start, 0),
|
|
n),
|
|
NULL);
|
|
|
|
return r;
|
|
}
|
|
|
|
int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
|
|
Server *s = userdata;
|
|
struct ucred *ucred = NULL;
|
|
struct timeval *tv = NULL;
|
|
struct cmsghdr *cmsg;
|
|
char *label = NULL;
|
|
size_t label_len = 0, m;
|
|
struct iovec iovec;
|
|
ssize_t n;
|
|
int *fds = NULL, v = 0;
|
|
unsigned n_fds = 0;
|
|
|
|
union {
|
|
struct cmsghdr cmsghdr;
|
|
|
|
/* We use NAME_MAX space for the SELinux label
|
|
* here. The kernel currently enforces no
|
|
* limit, but according to suggestions from
|
|
* the SELinux people this will change and it
|
|
* will probably be identical to NAME_MAX. For
|
|
* now we use that, but this should be updated
|
|
* one day when the final limit is known. */
|
|
uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +
|
|
CMSG_SPACE(sizeof(struct timeval)) +
|
|
CMSG_SPACE(sizeof(int)) + /* fd */
|
|
CMSG_SPACE(NAME_MAX)]; /* selinux label */
|
|
} control = {};
|
|
|
|
union sockaddr_union sa = {};
|
|
|
|
struct msghdr msghdr = {
|
|
.msg_iov = &iovec,
|
|
.msg_iovlen = 1,
|
|
.msg_control = &control,
|
|
.msg_controllen = sizeof(control),
|
|
.msg_name = &sa,
|
|
.msg_namelen = sizeof(sa),
|
|
};
|
|
|
|
assert(s);
|
|
assert(fd == s->native_fd || fd == s->syslog_fd || fd == s->audit_fd);
|
|
|
|
if (revents != EPOLLIN) {
|
|
log_error("Got invalid event from epoll for datagram fd: %"PRIx32, revents);
|
|
return -EIO;
|
|
}
|
|
|
|
/* Try to get the right size, if we can. (Not all
|
|
* sockets support SIOCINQ, hence we just try, but
|
|
* don't rely on it. */
|
|
(void) ioctl(fd, SIOCINQ, &v);
|
|
|
|
/* Fix it up, if it is too small. We use the same fixed value as auditd here. Awful! */
|
|
m = PAGE_ALIGN(MAX3((size_t) v + 1,
|
|
(size_t) LINE_MAX,
|
|
ALIGN(sizeof(struct nlmsghdr)) + ALIGN((size_t) MAX_AUDIT_MESSAGE_LENGTH)) + 1);
|
|
|
|
if (!GREEDY_REALLOC(s->buffer, s->buffer_size, m))
|
|
return log_oom();
|
|
|
|
iovec.iov_base = s->buffer;
|
|
iovec.iov_len = s->buffer_size - 1; /* Leave room for trailing NUL we add later */
|
|
|
|
n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);
|
|
if (n < 0) {
|
|
if (errno == EINTR || errno == EAGAIN)
|
|
return 0;
|
|
|
|
return log_error_errno(errno, "recvmsg() failed: %m");
|
|
}
|
|
|
|
CMSG_FOREACH(cmsg, &msghdr) {
|
|
|
|
if (cmsg->cmsg_level == SOL_SOCKET &&
|
|
cmsg->cmsg_type == SCM_CREDENTIALS &&
|
|
cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred)))
|
|
ucred = (struct ucred*) CMSG_DATA(cmsg);
|
|
else if (cmsg->cmsg_level == SOL_SOCKET &&
|
|
cmsg->cmsg_type == SCM_SECURITY) {
|
|
label = (char*) CMSG_DATA(cmsg);
|
|
label_len = cmsg->cmsg_len - CMSG_LEN(0);
|
|
} else if (cmsg->cmsg_level == SOL_SOCKET &&
|
|
cmsg->cmsg_type == SO_TIMESTAMP &&
|
|
cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))
|
|
tv = (struct timeval*) CMSG_DATA(cmsg);
|
|
else if (cmsg->cmsg_level == SOL_SOCKET &&
|
|
cmsg->cmsg_type == SCM_RIGHTS) {
|
|
fds = (int*) CMSG_DATA(cmsg);
|
|
n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
|
|
}
|
|
}
|
|
|
|
/* And a trailing NUL, just in case */
|
|
s->buffer[n] = 0;
|
|
|
|
if (fd == s->syslog_fd) {
|
|
if (n > 0 && n_fds == 0)
|
|
server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len);
|
|
else if (n_fds > 0)
|
|
log_warning("Got file descriptors via syslog socket. Ignoring.");
|
|
|
|
} else if (fd == s->native_fd) {
|
|
if (n > 0 && n_fds == 0)
|
|
server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len);
|
|
else if (n == 0 && n_fds == 1)
|
|
server_process_native_file(s, fds[0], ucred, tv, label, label_len);
|
|
else if (n_fds > 0)
|
|
log_warning("Got too many file descriptors via native socket. Ignoring.");
|
|
|
|
} else {
|
|
assert(fd == s->audit_fd);
|
|
|
|
if (n > 0 && n_fds == 0)
|
|
server_process_audit_message(s, s->buffer, n, ucred, &sa, msghdr.msg_namelen);
|
|
else if (n_fds > 0)
|
|
log_warning("Got file descriptors via audit socket. Ignoring.");
|
|
}
|
|
|
|
close_many(fds, n_fds);
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_sigusr1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
|
|
Server *s = userdata;
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
log_info("Received request to flush runtime journal from PID " PID_FMT, si->ssi_pid);
|
|
|
|
server_flush_to_var(s);
|
|
server_sync(s);
|
|
server_vacuum(s, false, false);
|
|
|
|
r = touch("/run/systemd/journal/flushed");
|
|
if (r < 0)
|
|
log_warning_errno(r, "Failed to touch /run/systemd/journal/flushed, ignoring: %m");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_sigusr2(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
|
|
Server *s = userdata;
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
log_info("Received request to rotate journal from PID " PID_FMT, si->ssi_pid);
|
|
server_rotate(s);
|
|
server_vacuum(s, true, true);
|
|
|
|
/* Let clients know when the most recent rotation happened. */
|
|
r = write_timestamp_file_atomic("/run/systemd/journal/rotated", now(CLOCK_MONOTONIC));
|
|
if (r < 0)
|
|
log_warning_errno(r, "Failed to write /run/systemd/journal/rotated, ignoring: %m");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
|
|
Server *s = userdata;
|
|
|
|
assert(s);
|
|
|
|
log_received_signal(LOG_INFO, si);
|
|
|
|
sd_event_exit(s->event, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_sigrtmin1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
|
|
Server *s = userdata;
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
log_debug("Received request to sync from PID " PID_FMT, si->ssi_pid);
|
|
|
|
server_sync(s);
|
|
|
|
/* Let clients know when the most recent sync happened. */
|
|
r = write_timestamp_file_atomic("/run/systemd/journal/synced", now(CLOCK_MONOTONIC));
|
|
if (r < 0)
|
|
log_warning_errno(r, "Failed to write /run/systemd/journal/synced, ignoring: %m");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int setup_signals(Server *s) {
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
assert(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, SIGRTMIN+1, -1) >= 0);
|
|
|
|
r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_event_add_signal(s->event, &s->sigusr2_event_source, SIGUSR2, dispatch_sigusr2, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_event_add_signal(s->event, &s->sigterm_event_source, SIGTERM, dispatch_sigterm, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Let's process SIGTERM late, so that we flush all queued
|
|
* messages to disk before we exit */
|
|
r = sd_event_source_set_priority(s->sigterm_event_source, SD_EVENT_PRIORITY_NORMAL+20);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* When journald is invoked on the terminal (when debugging),
|
|
* it's useful if C-c is handled equivalent to SIGTERM. */
|
|
r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_event_source_set_priority(s->sigint_event_source, SD_EVENT_PRIORITY_NORMAL+20);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* SIGRTMIN+1 causes an immediate sync. We process this very
|
|
* late, so that everything else queued at this point is
|
|
* really written to disk. Clients can watch
|
|
* /run/systemd/journal/synced with inotify until its mtime
|
|
* changes to see when a sync happened. */
|
|
r = sd_event_add_signal(s->event, &s->sigrtmin1_event_source, SIGRTMIN+1, dispatch_sigrtmin1, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_event_source_set_priority(s->sigrtmin1_event_source, SD_EVENT_PRIORITY_NORMAL+15);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int server_parse_proc_cmdline(Server *s) {
|
|
_cleanup_free_ char *line = NULL;
|
|
const char *p;
|
|
int r;
|
|
|
|
r = proc_cmdline(&line);
|
|
if (r < 0) {
|
|
log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m");
|
|
return 0;
|
|
}
|
|
|
|
p = line;
|
|
for (;;) {
|
|
_cleanup_free_ char *word = NULL;
|
|
|
|
r = extract_first_word(&p, &word, NULL, 0);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse journald syntax \"%s\": %m", line);
|
|
|
|
if (r == 0)
|
|
break;
|
|
|
|
if (startswith(word, "systemd.journald.forward_to_syslog=")) {
|
|
r = parse_boolean(word + 35);
|
|
if (r < 0)
|
|
log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35);
|
|
else
|
|
s->forward_to_syslog = r;
|
|
} else if (startswith(word, "systemd.journald.forward_to_kmsg=")) {
|
|
r = parse_boolean(word + 33);
|
|
if (r < 0)
|
|
log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33);
|
|
else
|
|
s->forward_to_kmsg = r;
|
|
} else if (startswith(word, "systemd.journald.forward_to_console=")) {
|
|
r = parse_boolean(word + 36);
|
|
if (r < 0)
|
|
log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);
|
|
else
|
|
s->forward_to_console = r;
|
|
} else if (startswith(word, "systemd.journald.forward_to_wall=")) {
|
|
r = parse_boolean(word + 33);
|
|
if (r < 0)
|
|
log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33);
|
|
else
|
|
s->forward_to_wall = r;
|
|
} else if (startswith(word, "systemd.journald"))
|
|
log_warning("Invalid systemd.journald parameter. Ignoring.");
|
|
}
|
|
|
|
/* do not warn about state here, since probably systemd already did */
|
|
return 0;
|
|
}
|
|
|
|
static int server_parse_config_file(Server *s) {
|
|
assert(s);
|
|
|
|
return config_parse_many(PKGSYSCONFDIR "/journald.conf",
|
|
CONF_PATHS_NULSTR("systemd/journald.conf.d"),
|
|
"Journal\0",
|
|
config_item_perf_lookup, journald_gperf_lookup,
|
|
false, s);
|
|
}
|
|
|
|
static int server_dispatch_sync(sd_event_source *es, usec_t t, void *userdata) {
|
|
Server *s = userdata;
|
|
|
|
assert(s);
|
|
|
|
server_sync(s);
|
|
return 0;
|
|
}
|
|
|
|
int server_schedule_sync(Server *s, int priority) {
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
if (priority <= LOG_CRIT) {
|
|
/* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */
|
|
server_sync(s);
|
|
return 0;
|
|
}
|
|
|
|
if (s->sync_scheduled)
|
|
return 0;
|
|
|
|
if (s->sync_interval_usec > 0) {
|
|
usec_t when;
|
|
|
|
r = sd_event_now(s->event, CLOCK_MONOTONIC, &when);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
when += s->sync_interval_usec;
|
|
|
|
if (!s->sync_event_source) {
|
|
r = sd_event_add_time(
|
|
s->event,
|
|
&s->sync_event_source,
|
|
CLOCK_MONOTONIC,
|
|
when, 0,
|
|
server_dispatch_sync, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_event_source_set_priority(s->sync_event_source, SD_EVENT_PRIORITY_IMPORTANT);
|
|
} else {
|
|
r = sd_event_source_set_time(s->sync_event_source, when);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_ONESHOT);
|
|
}
|
|
if (r < 0)
|
|
return r;
|
|
|
|
s->sync_scheduled = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_hostname_change(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
|
|
Server *s = userdata;
|
|
|
|
assert(s);
|
|
|
|
server_cache_hostname(s);
|
|
return 0;
|
|
}
|
|
|
|
static int server_open_hostname(Server *s) {
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
s->hostname_fd = open("/proc/sys/kernel/hostname", O_RDONLY|O_CLOEXEC|O_NDELAY|O_NOCTTY);
|
|
if (s->hostname_fd < 0)
|
|
return log_error_errno(errno, "Failed to open /proc/sys/kernel/hostname: %m");
|
|
|
|
r = sd_event_add_io(s->event, &s->hostname_event_source, s->hostname_fd, 0, dispatch_hostname_change, s);
|
|
if (r < 0) {
|
|
/* kernels prior to 3.2 don't support polling this file. Ignore
|
|
* the failure. */
|
|
if (r == -EPERM) {
|
|
log_warning_errno(r, "Failed to register hostname fd in event loop, ignoring: %m");
|
|
s->hostname_fd = safe_close(s->hostname_fd);
|
|
return 0;
|
|
}
|
|
|
|
return log_error_errno(r, "Failed to register hostname fd in event loop: %m");
|
|
}
|
|
|
|
r = sd_event_source_set_priority(s->hostname_event_source, SD_EVENT_PRIORITY_IMPORTANT-10);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to adjust priority of host name event source: %m");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_notify_event(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
|
|
Server *s = userdata;
|
|
int r;
|
|
|
|
assert(s);
|
|
assert(s->notify_event_source == es);
|
|
assert(s->notify_fd == fd);
|
|
|
|
/* The $NOTIFY_SOCKET is writable again, now send exactly one
|
|
* message on it. Either it's the wtachdog event, the initial
|
|
* READY=1 event or an stdout stream event. If there's nothing
|
|
* to write anymore, turn our event source off. The next time
|
|
* there's something to send it will be turned on again. */
|
|
|
|
if (!s->sent_notify_ready) {
|
|
static const char p[] =
|
|
"READY=1\n"
|
|
"STATUS=Processing requests...";
|
|
ssize_t l;
|
|
|
|
l = send(s->notify_fd, p, strlen(p), MSG_DONTWAIT);
|
|
if (l < 0) {
|
|
if (errno == EAGAIN)
|
|
return 0;
|
|
|
|
return log_error_errno(errno, "Failed to send READY=1 notification message: %m");
|
|
}
|
|
|
|
s->sent_notify_ready = true;
|
|
log_debug("Sent READY=1 notification.");
|
|
|
|
} else if (s->send_watchdog) {
|
|
|
|
static const char p[] =
|
|
"WATCHDOG=1";
|
|
|
|
ssize_t l;
|
|
|
|
l = send(s->notify_fd, p, strlen(p), MSG_DONTWAIT);
|
|
if (l < 0) {
|
|
if (errno == EAGAIN)
|
|
return 0;
|
|
|
|
return log_error_errno(errno, "Failed to send WATCHDOG=1 notification message: %m");
|
|
}
|
|
|
|
s->send_watchdog = false;
|
|
log_debug("Sent WATCHDOG=1 notification.");
|
|
|
|
} else if (s->stdout_streams_notify_queue)
|
|
/* Dispatch one stream notification event */
|
|
stdout_stream_send_notify(s->stdout_streams_notify_queue);
|
|
|
|
/* Leave us enabled if there's still more to to do. */
|
|
if (s->send_watchdog || s->stdout_streams_notify_queue)
|
|
return 0;
|
|
|
|
/* There was nothing to do anymore, let's turn ourselves off. */
|
|
r = sd_event_source_set_enabled(es, SD_EVENT_OFF);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to turn off notify event source: %m");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dispatch_watchdog(sd_event_source *es, uint64_t usec, void *userdata) {
|
|
Server *s = userdata;
|
|
int r;
|
|
|
|
assert(s);
|
|
|
|
s->send_watchdog = true;
|
|
|
|
r = sd_event_source_set_enabled(s->notify_event_source, SD_EVENT_ON);
|
|
if (r < 0)
|
|
log_warning_errno(r, "Failed to turn on notify event source: %m");
|
|
|
|
r = sd_event_source_set_time(s->watchdog_event_source, usec + s->watchdog_usec / 2);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to restart watchdog event source: %m");
|
|
|
|
r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ON);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to enable watchdog event source: %m");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int server_connect_notify(Server *s) {
|
|
union sockaddr_union sa = {
|
|
.un.sun_family = AF_UNIX,
|
|
};
|
|
const char *e;
|
|
int r;
|
|
|
|
assert(s);
|
|
assert(s->notify_fd < 0);
|
|
assert(!s->notify_event_source);
|
|
|
|
/*
|
|
So here's the problem: we'd like to send notification
|
|
messages to PID 1, but we cannot do that via sd_notify(),
|
|
since that's synchronous, and we might end up blocking on
|
|
it. Specifically: given that PID 1 might block on
|
|
dbus-daemon during IPC, and dbus-daemon is logging to us,
|
|
and might hence block on us, we might end up in a deadlock
|
|
if we block on sending PID 1 notification messages -- by
|
|
generating a full blocking circle. To avoid this, let's
|
|
create a non-blocking socket, and connect it to the
|
|
notification socket, and then wait for POLLOUT before we
|
|
send anything. This should efficiently avoid any deadlocks,
|
|
as we'll never block on PID 1, hence PID 1 can safely block
|
|
on dbus-daemon which can safely block on us again.
|
|
|
|
Don't think that this issue is real? It is, see:
|
|
https://github.com/systemd/systemd/issues/1505
|
|
*/
|
|
|
|
e = getenv("NOTIFY_SOCKET");
|
|
if (!e)
|
|
return 0;
|
|
|
|
if ((e[0] != '@' && e[0] != '/') || e[1] == 0) {
|
|
log_error("NOTIFY_SOCKET set to an invalid value: %s", e);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (strlen(e) > sizeof(sa.un.sun_path)) {
|
|
log_error("NOTIFY_SOCKET path too long: %s", e);
|
|
return -EINVAL;
|
|
}
|
|
|
|
s->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
|
|
if (s->notify_fd < 0)
|
|
return log_error_errno(errno, "Failed to create notify socket: %m");
|
|
|
|
(void) fd_inc_sndbuf(s->notify_fd, NOTIFY_SNDBUF_SIZE);
|
|
|
|
strncpy(sa.un.sun_path, e, sizeof(sa.un.sun_path));
|
|
if (sa.un.sun_path[0] == '@')
|
|
sa.un.sun_path[0] = 0;
|
|
|
|
r = connect(s->notify_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(e));
|
|
if (r < 0)
|
|
return log_error_errno(errno, "Failed to connect to notify socket: %m");
|
|
|
|
r = sd_event_add_io(s->event, &s->notify_event_source, s->notify_fd, EPOLLOUT, dispatch_notify_event, s);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to watch notification socket: %m");
|
|
|
|
if (sd_watchdog_enabled(false, &s->watchdog_usec) > 0) {
|
|
s->send_watchdog = true;
|
|
|
|
r = sd_event_add_time(s->event, &s->watchdog_event_source, CLOCK_MONOTONIC, now(CLOCK_MONOTONIC) + s->watchdog_usec/2, s->watchdog_usec/4, dispatch_watchdog, s);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to add watchdog time event: %m");
|
|
}
|
|
|
|
/* This should fire pretty soon, which we'll use to send the
|
|
* READY=1 event. */
|
|
|
|
return 0;
|
|
}
|
|
|
|
int server_init(Server *s) {
|
|
_cleanup_fdset_free_ FDSet *fds = NULL;
|
|
int n, r, fd;
|
|
bool no_sockets;
|
|
|
|
assert(s);
|
|
|
|
zero(*s);
|
|
s->syslog_fd = s->native_fd = s->stdout_fd = s->dev_kmsg_fd = s->audit_fd = s->hostname_fd = s->notify_fd = -1;
|
|
s->compress = true;
|
|
s->seal = true;
|
|
|
|
s->watchdog_usec = USEC_INFINITY;
|
|
|
|
s->sync_interval_usec = DEFAULT_SYNC_INTERVAL_USEC;
|
|
s->sync_scheduled = false;
|
|
|
|
s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL;
|
|
s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
|
|
|
|
s->forward_to_wall = true;
|
|
|
|
s->max_file_usec = DEFAULT_MAX_FILE_USEC;
|
|
|
|
s->max_level_store = LOG_DEBUG;
|
|
s->max_level_syslog = LOG_DEBUG;
|
|
s->max_level_kmsg = LOG_NOTICE;
|
|
s->max_level_console = LOG_INFO;
|
|
s->max_level_wall = LOG_EMERG;
|
|
|
|
journal_reset_metrics(&s->system_metrics);
|
|
journal_reset_metrics(&s->runtime_metrics);
|
|
|
|
server_parse_config_file(s);
|
|
server_parse_proc_cmdline(s);
|
|
|
|
if (!!s->rate_limit_interval ^ !!s->rate_limit_burst) {
|
|
log_debug("Setting both rate limit interval and burst from "USEC_FMT",%u to 0,0",
|
|
s->rate_limit_interval, s->rate_limit_burst);
|
|
s->rate_limit_interval = s->rate_limit_burst = 0;
|
|
}
|
|
|
|
(void) mkdir_p("/run/systemd/journal", 0755);
|
|
|
|
s->user_journals = ordered_hashmap_new(NULL);
|
|
if (!s->user_journals)
|
|
return log_oom();
|
|
|
|
s->mmap = mmap_cache_new();
|
|
if (!s->mmap)
|
|
return log_oom();
|
|
|
|
s->deferred_closes = set_new(NULL);
|
|
if (!s->deferred_closes)
|
|
return log_oom();
|
|
|
|
r = sd_event_default(&s->event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to create event loop: %m");
|
|
|
|
n = sd_listen_fds(true);
|
|
if (n < 0)
|
|
return log_error_errno(n, "Failed to read listening file descriptors from environment: %m");
|
|
|
|
for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
|
|
|
|
if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) {
|
|
|
|
if (s->native_fd >= 0) {
|
|
log_error("Too many native sockets passed.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
s->native_fd = fd;
|
|
|
|
} else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) {
|
|
|
|
if (s->stdout_fd >= 0) {
|
|
log_error("Too many stdout sockets passed.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
s->stdout_fd = fd;
|
|
|
|
} else if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/dev/log", 0) > 0 ||
|
|
sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/dev-log", 0) > 0) {
|
|
|
|
if (s->syslog_fd >= 0) {
|
|
log_error("Too many /dev/log sockets passed.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
s->syslog_fd = fd;
|
|
|
|
} else if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) {
|
|
|
|
if (s->audit_fd >= 0) {
|
|
log_error("Too many audit sockets passed.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
s->audit_fd = fd;
|
|
|
|
} else {
|
|
|
|
if (!fds) {
|
|
fds = fdset_new();
|
|
if (!fds)
|
|
return log_oom();
|
|
}
|
|
|
|
r = fdset_put(fds, fd);
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
}
|
|
|
|
/* Try to restore streams, but don't bother if this fails */
|
|
(void) server_restore_streams(s, fds);
|
|
|
|
if (fdset_size(fds) > 0) {
|
|
log_warning("%u unknown file descriptors passed, closing.", fdset_size(fds));
|
|
fds = fdset_free(fds);
|
|
}
|
|
|
|
no_sockets = s->native_fd < 0 && s->stdout_fd < 0 && s->syslog_fd < 0 && s->audit_fd < 0;
|
|
|
|
/* always open stdout, syslog, native, and kmsg sockets */
|
|
|
|
/* systemd-journald.socket: /run/systemd/journal/stdout */
|
|
r = server_open_stdout_socket(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* systemd-journald-dev-log.socket: /run/systemd/journal/dev-log */
|
|
r = server_open_syslog_socket(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* systemd-journald.socket: /run/systemd/journal/socket */
|
|
r = server_open_native_socket(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* /dev/ksmg */
|
|
r = server_open_dev_kmsg(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Unless we got *some* sockets and not audit, open audit socket */
|
|
if (s->audit_fd >= 0 || no_sockets) {
|
|
r = server_open_audit(s);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
r = server_open_kernel_seqnum(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = server_open_hostname(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = setup_signals(s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
s->udev = udev_new();
|
|
if (!s->udev)
|
|
return -ENOMEM;
|
|
|
|
s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst);
|
|
if (!s->rate_limit)
|
|
return -ENOMEM;
|
|
|
|
r = cg_get_root_path(&s->cgroup_root);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
server_cache_hostname(s);
|
|
server_cache_boot_id(s);
|
|
server_cache_machine_id(s);
|
|
|
|
(void) server_connect_notify(s);
|
|
|
|
return system_journal_open(s, false);
|
|
}
|
|
|
|
void server_maybe_append_tags(Server *s) {
|
|
#ifdef HAVE_GCRYPT
|
|
JournalFile *f;
|
|
Iterator i;
|
|
usec_t n;
|
|
|
|
n = now(CLOCK_REALTIME);
|
|
|
|
if (s->system_journal)
|
|
journal_file_maybe_append_tag(s->system_journal, n);
|
|
|
|
ORDERED_HASHMAP_FOREACH(f, s->user_journals, i)
|
|
journal_file_maybe_append_tag(f, n);
|
|
#endif
|
|
}
|
|
|
|
void server_done(Server *s) {
|
|
JournalFile *f;
|
|
assert(s);
|
|
|
|
if (s->deferred_closes) {
|
|
journal_file_close_set(s->deferred_closes);
|
|
set_free(s->deferred_closes);
|
|
}
|
|
|
|
while (s->stdout_streams)
|
|
stdout_stream_free(s->stdout_streams);
|
|
|
|
if (s->system_journal)
|
|
(void) journal_file_close(s->system_journal);
|
|
|
|
if (s->runtime_journal)
|
|
(void) journal_file_close(s->runtime_journal);
|
|
|
|
while ((f = ordered_hashmap_steal_first(s->user_journals)))
|
|
(void) journal_file_close(f);
|
|
|
|
ordered_hashmap_free(s->user_journals);
|
|
|
|
sd_event_source_unref(s->syslog_event_source);
|
|
sd_event_source_unref(s->native_event_source);
|
|
sd_event_source_unref(s->stdout_event_source);
|
|
sd_event_source_unref(s->dev_kmsg_event_source);
|
|
sd_event_source_unref(s->audit_event_source);
|
|
sd_event_source_unref(s->sync_event_source);
|
|
sd_event_source_unref(s->sigusr1_event_source);
|
|
sd_event_source_unref(s->sigusr2_event_source);
|
|
sd_event_source_unref(s->sigterm_event_source);
|
|
sd_event_source_unref(s->sigint_event_source);
|
|
sd_event_source_unref(s->sigrtmin1_event_source);
|
|
sd_event_source_unref(s->hostname_event_source);
|
|
sd_event_source_unref(s->notify_event_source);
|
|
sd_event_source_unref(s->watchdog_event_source);
|
|
sd_event_unref(s->event);
|
|
|
|
safe_close(s->syslog_fd);
|
|
safe_close(s->native_fd);
|
|
safe_close(s->stdout_fd);
|
|
safe_close(s->dev_kmsg_fd);
|
|
safe_close(s->audit_fd);
|
|
safe_close(s->hostname_fd);
|
|
safe_close(s->notify_fd);
|
|
|
|
if (s->rate_limit)
|
|
journal_rate_limit_free(s->rate_limit);
|
|
|
|
if (s->kernel_seqnum)
|
|
munmap(s->kernel_seqnum, sizeof(uint64_t));
|
|
|
|
free(s->buffer);
|
|
free(s->tty_path);
|
|
free(s->cgroup_root);
|
|
free(s->hostname_field);
|
|
|
|
if (s->mmap)
|
|
mmap_cache_unref(s->mmap);
|
|
|
|
udev_unref(s->udev);
|
|
}
|
|
|
|
static const char* const storage_table[_STORAGE_MAX] = {
|
|
[STORAGE_AUTO] = "auto",
|
|
[STORAGE_VOLATILE] = "volatile",
|
|
[STORAGE_PERSISTENT] = "persistent",
|
|
[STORAGE_NONE] = "none"
|
|
};
|
|
|
|
DEFINE_STRING_TABLE_LOOKUP(storage, Storage);
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting");
|
|
|
|
static const char* const split_mode_table[_SPLIT_MAX] = {
|
|
[SPLIT_LOGIN] = "login",
|
|
[SPLIT_UID] = "uid",
|
|
[SPLIT_NONE] = "none",
|
|
};
|
|
|
|
DEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode);
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting");
|