journald-server.c revision dbd6e31cf91ab86a4a2fffeb50ccef211da3126d
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek This file is part of systemd.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek Copyright 2011 Lennart Poettering
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek systemd is free software; you can redistribute it and/or modify it
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek under the terms of the GNU Lesser General Public License as published by
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek the Free Software Foundation; either version 2.1 of the License, or
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (at your option) any later version.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek systemd is distributed in the hope that it will be useful, but
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek WITHOUT ANY WARRANTY; without even the implied warranty of
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek Lesser General Public License for more details.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek You should have received a copy of the GNU Lesser General Public License
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek along with systemd; If not, see <http://www.gnu.org/licenses/>.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "journal-authenticate.h"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define DEFAULT_RATE_LIMIT_BURST 1000
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define DEFAULT_MAX_FILE_USEC USEC_PER_MONTH
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define RECHECK_SPACE_USEC (30*USEC_PER_SEC)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define NOTIFY_SNDBUF_SIZE (8*1024*1024)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uint64_t sum = 0, ss_avail, avail;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek _cleanup_closedir_ DIR *d = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!verbose && s->cached_space_timestamp + RECHECK_SPACE_USEC > ts) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek *available = s->cached_space_available;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek p = strjoina(path, SERVER_MACHINE_ID(s));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, "Failed to open %s: %m", p);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (fstatvfs(dirfd(d), &ss) < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(errno, "Failed to fstatvfs(%s): %m", p);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek FOREACH_DIRENT_ALL(de, d, break) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!endswith(de->d_name, ".journal") &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek !endswith(de->d_name, ".journal~"))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug_errno(errno, "Failed to stat %s/%s, ignoring: %m", p, de->d_name);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sum += (uint64_t) st.st_blocks * 512UL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* If request, then let's bump the min_use limit to the
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * current usage on disk. We do this when starting up and
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * first opening the journal files. This way sudden spikes in
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * disk usage will not cause journald to vacuum files without
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * bounds. Note that this means that only a restart of
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * journald will make it reset this value. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek metrics->min_use = MAX(metrics->min_use, sum);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek ss_avail = ss.f_bsize * ss.f_bavail;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek avail = LESS_BY(ss_avail, metrics->keep_free);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->cached_space_limit = MIN(MAX(sum + avail, metrics->min_use), metrics->max_use);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->cached_space_available = LESS_BY(s->cached_space_limit, sum);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX], fb6[FORMAT_BYTES_MAX];
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek "%s (%s) is currently using %s.\n"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek "Maximum allowed usage is set to %s.\n"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek "Leaving at least %s free (of currently available %s of space).\n"
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek "Enforced usage limit is thus %s, of which %s are still available.",
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb1, sizeof(fb1), sum),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb2, sizeof(fb2), metrics->max_use),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb3, sizeof(fb3), metrics->keep_free),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb4, sizeof(fb4), ss_avail),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb5, sizeof(fb5), s->cached_space_limit),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb6, sizeof(fb6), s->cached_space_available));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int determine_space(Server *s, bool verbose, bool patch_min_use, uint64_t *available, uint64_t *limit) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return determine_space_for(s, metrics, path, name, verbose, patch_min_use, available, limit);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid server_fix_perms(Server *s, JournalFile *f, uid_t uid) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek _cleanup_(acl_freep) acl_t acl = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(errno, "Failed to fix access mode on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(errno, "Failed to read ACL on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = acl_find_uid(acl, uid, &entry);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (acl_create_entry(&acl, &entry) < 0 ||
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek acl_set_tag_type(entry, ACL_USER) < 0 ||
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek acl_set_qualifier(entry, &uid) < 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* We do not recalculate the mask unconditionally here,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * so that the fchmod() mask above stays intact. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (acl_get_permset(entry, &permset) < 0 ||
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek acl_add_perm(permset, ACL_READ) < 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = calc_acl_mask_if_needed(&acl);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(r, "Failed to patch ACL on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(errno, "Failed to set ACL on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic JournalFile* find_journal(Server *s, uid_t uid) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* We split up user logs only on /var, not on /run. If the
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * runtime file is open, we write to it exclusively, in order
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * to guarantee proper order as soon as we flush /run to
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * /var and close the runtime file. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_id128_get_machine(&machine);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = ordered_hashmap_get(s->user_journals, UINT32_TO_PTR(uid));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-"UID_FMT".journal",
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek SD_ID128_FORMAT_VAL(machine), uid) < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek while (ordered_hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Too many open? Then let's close one */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = ordered_hashmap_steal_first(s->user_journals);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_open_reliably(p, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &f);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = ordered_hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_rotate(f, s->compress, seal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to rotate %s: %m", (*f)->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to create new %s journal: %m", name);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) do_rotate(s, &s->runtime_journal, "runtime", false, 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) do_rotate(s, &s->system_journal, "system", s->seal, 0);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk r = do_rotate(s, &f, "user", s->seal, PTR_TO_UINT32(k));
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk ordered_hashmap_replace(s->user_journals, k, f);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk /* Old file has been closed and deallocated */
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk ordered_hashmap_remove(s->user_journals, k);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk r = journal_file_set_offline(s->system_journal);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_warning_errno(r, "Failed to sync system journal, ignoring: %m");
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_warning_errno(r, "Failed to sync user journal, ignoring: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_OFF);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to disable sync timer source: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek p = strjoina(path, SERVER_MACHINE_ID(s));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) determine_space_for(s, metrics, path, name, verbose, patch_min_use, NULL, &limit);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_directory_vacuum(p, limit, metrics->n_max_files, s->max_retention_usec, &s->oldest_file_usec, verbose);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0 && r != -ENOENT)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(r, "Failed to vacuum %s, ignoring: %m", p);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint server_vacuum(Server *s, bool verbose, bool patch_min_use) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek do_vacuum(s, s->system_journal, &s->system_metrics, "/var/log/journal/", "System journal", verbose, patch_min_use);
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek do_vacuum(s, s->runtime_journal, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", verbose, patch_min_use);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void server_cache_machine_id(Server *s) {
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek sd_id128_to_string(id, stpcpy(s->machine_id_field, "_MACHINE_ID="));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void server_cache_boot_id(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_id128_to_string(id, stpcpy(s->boot_id_field, "_BOOT_ID="));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void server_cache_hostname(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic bool shall_try_append_again(JournalFile *f, int r) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* -E2BIG Hit configured limit
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EFBIG Hit fs limit
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EDQUOT Quota limit hit
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -ENOSPC Disk full
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EIO I/O error of some kind (mmap)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EHOSTDOWN Other machine
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EBUSY Unclean shutdown
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EPROTONOSUPPORT Unsupported feature
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EBADMSG Corrupted
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -ENODATA Truncated
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -ESHUTDOWN Already archived
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek -EIDRM Journal file has been deleted */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("%s: Allocation limit reached, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("%s: Journal file from other machine, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("%s: Unclean shutdown, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("%s: Unsupported feature, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("%s: Journal file corrupted, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("%s: IO error, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("%s: Journal file has been deleted, rotating.", f->path);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk return false;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (journal_file_rotate_suggested(f, s->max_file_usec)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther server_schedule_sync(s, priority);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (vacuumed || !shall_try_append_again(f, r)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to write entry (%d items, %zu bytes), ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_schedule_sync(s, priority);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct iovec *iovec, unsigned n, unsigned m,
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther const char *label, size_t label_len,
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)],
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)],
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)],
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)],
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)];
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uid_t realuid = 0, owner = 0, journal_uid;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)];
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(pid, "_PID="PID_FMT, ucred->pid);
0a20e3c10761378869af7bbef2733e3ae879d0f1Holger Hans Peter Freyther IOVEC_SET_STRING(iovec[n++], pid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(uid, "_UID="UID_FMT, ucred->uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(gid, "_GID="GID_FMT, ucred->gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_comm(ucred->pid, &t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_exe(ucred->pid, &t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_cmdline(ucred->pid, 0, false, &t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_capeff(ucred->pid, &t);
83d7d83bcc6c462ecbb4c8003e3a8b41f3b88d46Kay Sievers if (r >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = audit_session_from_pid(ucred->pid, &audit);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(audit_session, "_AUDIT_SESSION=%"PRIu32, audit);
ef1673d16907726d83bdff2e57b5261997a85020Mirco Tischler r = audit_loginuid_from_pid(ucred->pid, &loginuid);
ef1673d16907726d83bdff2e57b5261997a85020Mirco Tischler if (r >= 0) {
ef1673d16907726d83bdff2e57b5261997a85020Mirco Tischler sprintf(audit_loginuid, "_AUDIT_LOGINUID="UID_FMT, loginuid);
ef1673d16907726d83bdff2e57b5261997a85020Mirco Tischler IOVEC_SET_STRING(iovec[n++], audit_loginuid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &c);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_CGROUP=", c);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek session = strjoina("_SYSTEMD_SESSION=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], session);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_owner_uid(c, &owner) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(owner_uid, "_SYSTEMD_OWNER_UID="UID_FMT, owner);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], owner_uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_unit(c, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_UNIT=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (unit_id && !session) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_UNIT=", unit_id);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_user_unit(c, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_USER_UNIT=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (unit_id && session) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_USER_UNIT=", unit_id);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_slice(c, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_SLICE=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("_SYSTEMD_UNIT=", unit_id);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
759c945a43577d56e85a927f15e7d9aaa94a4e4aColin Walters x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1);
40adcda869bda55f44b57fd3a2bd71d006dfb51bLennart Poettering *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_uid(object_pid, &object_uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(o_uid, "OBJECT_UID="UID_FMT, object_uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], o_uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_gid(object_pid, &object_gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(o_gid, "OBJECT_GID="GID_FMT, object_gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], o_gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_comm(object_pid, &t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("OBJECT_COMM=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_exe(object_pid, &t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_cmdline(object_pid, 0, false, &t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("OBJECT_CMDLINE=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = audit_session_from_pid(object_pid, &audit);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%"PRIu32, audit);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], o_audit_session);
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek r = audit_loginuid_from_pid(object_pid, &loginuid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID="UID_FMT, loginuid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], o_audit_loginuid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = cg_pid_get_path_shifted(object_pid, s->cgroup_root, &c);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("OBJECT_SYSTEMD_CGROUP=", c);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("OBJECT_SYSTEMD_SESSION=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_owner_uid(c, &owner) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID="UID_FMT, owner);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], o_owner_uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_unit(c, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("OBJECT_SYSTEMD_UNIT=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cg_path_get_user_unit(c, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek x = strjoina("OBJECT_SYSTEMD_USER_UNIT=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], x);
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv));
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], source_time);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Note that strictly speaking storing the boot id here is
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * redundant since the entry includes this in-line
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * anyway. However, we need this indexed, too. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], s->boot_id_field);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!isempty(s->machine_id_field))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], s->machine_id_field);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!isempty(s->hostname_field))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], s->hostname_field);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->split_mode == SPLIT_UID && realuid > 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Split up strictly by any UID */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Split up by login UIDs. We do this only if the
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * realuid is not root, in order not to accidentally
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * leak privileged information to the user that is
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * logged by a privileged process that is part of an
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * unprivileged session. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek write_to_journal(s, journal_uid, iovec, n, priority);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct iovec iovec[N_IOVEC_META_FIELDS + 6];
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], "SYSLOG_FACILITY=3");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], "SYSLOG_IDENTIFIER=systemd-journald");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], "PRIORITY=6");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], buffer);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!sd_id128_equal(message_id, SD_ID128_NULL)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek snprintf(mid, sizeof(mid), LOG_MESSAGE_ID(message_id));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], mid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct iovec *iovec, unsigned n, unsigned m,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek const char *label, size_t label_len,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek _cleanup_free_ char *path = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (LOG_PRI(priority) > s->max_level_store)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Stop early in case the information will not be stored
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * in a journal. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* example: /user/lennart/3/foobar
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * So let's cut of everything past the third /, since that is
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * where user directories start */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) determine_space(s, false, false, &available, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek rl = journal_rate_limit_test(s->rate_limit, path, priority & LOG_PRIMASK, available);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Write a suppression message if we suppressed something */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek "Suppressed %u messages from %s", rl - 1, path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int system_journal_open(Server *s, bool flush_requested) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek || access("/run/systemd/journal/flushed", F_OK) >= 0)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* If in auto mode: first try to create the machine
93b73b064c663d6248bebfbbbd82989b5ca10fc5Lennart Poettering * path, but not the prefix.
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * If in persistent mode: create /var/log/journal and
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * the machine path */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->storage == STORAGE_PERSISTENT)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) mkdir_p("/var/log/journal/", 0755);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek fn = strjoina("/var/log/journal/", SERVER_MACHINE_ID(s));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek fn = strjoina(fn, "/system.journal");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &s->system_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_fix_perms(s, s->system_journal, 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) determine_space_for(s, &s->system_metrics, "/var/log/journal/", "System journal", true, true, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (r < 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r != -ENOENT && r != -EROFS)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(r, "Failed to open system journal: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek fn = strjoina("/run/log/journal/", SERVER_MACHINE_ID(s), "/system.journal");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Try to open the runtime journal, but only
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * if it already exists, so that we can flush
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * it into the system journal */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_open(fn, O_RDWR, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(r, "Failed to open runtime journal: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* OK, we really need the runtime journal, so create
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * it if necessary. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) mkdir("/run/log/journal", 0755);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(r, "Failed to open runtime journal: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_fix_perms(s, s->runtime_journal, 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) determine_space_for(s, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", true, true, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint server_flush_to_var(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->storage != STORAGE_AUTO &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) system_journal_open(s, true);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk return log_error_errno(r, "Failed to read runtime journal: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(f && f->current_offset > 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Can't read entry: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!shall_try_append_again(s->system_journal, r)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Can't write entry: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error_errno(r, "Can't write entry: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek journal_file_post_change(s->system_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->runtime_journal = journal_file_close(s->runtime_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) rm_rf("/run/log/journal", REMOVE_ROOT);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_driver_message(s, SD_ID128_NULL, "Time spent on flushing to /var is %s for %u entries.", format_timespan(ts, sizeof(ts), now(CLOCK_MONOTONIC) - start, 0), n);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* We use NAME_MAX space for the SELinux label
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * here. The kernel currently enforces no
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * limit, but according to suggestions from
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * the SELinux people this will change and it
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * will probably be identical to NAME_MAX. For
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * now we use that, but this should be updated
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * one day when the final limit is known. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek CMSG_SPACE(sizeof(struct timeval)) +
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek CMSG_SPACE(sizeof(int)) + /* fd */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek CMSG_SPACE(NAME_MAX)]; /* selinux label */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .msg_controllen = sizeof(control),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(fd == s->native_fd || fd == s->syslog_fd || fd == s->audit_fd);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Got invalid event from epoll for datagram fd: %"PRIx32, revents);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Try to get the right size, if we can. (Not all
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * sockets support SIOCINQ, hence we just try, but
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * don't rely on it. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Fix it up, if it is too small. We use the same fixed value as auditd here. Awful! */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m = PAGE_ALIGN(MAX3((size_t) v + 1,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek ALIGN(sizeof(struct nlmsghdr)) + ALIGN((size_t) MAX_AUDIT_MESSAGE_LENGTH)) + 1);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!GREEDY_REALLOC(s->buffer, s->buffer_size, m))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek iovec.iov_len = s->buffer_size - 1; /* Leave room for trailing NUL we add later */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (errno == EINTR || errno == EAGAIN)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(errno, "recvmsg() failed: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (cmsg->cmsg_level == SOL_SOCKET &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cmsg->cmsg_type == SCM_CREDENTIALS &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred)))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek ucred = (struct ucred*) CMSG_DATA(cmsg);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else if (cmsg->cmsg_level == SOL_SOCKET &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cmsg->cmsg_type == SCM_SECURITY) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek label = (char*) CMSG_DATA(cmsg);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek label_len = cmsg->cmsg_len - CMSG_LEN(0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (cmsg->cmsg_level == SOL_SOCKET &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cmsg->cmsg_type == SO_TIMESTAMP &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek tv = (struct timeval*) CMSG_DATA(cmsg);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else if (cmsg->cmsg_level == SOL_SOCKET &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cmsg->cmsg_type == SCM_RIGHTS) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* And a trailing NUL, just in case */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (n > 0 && n_fds == 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Got file descriptors via syslog socket. Ignoring.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (fd == s->native_fd) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (n > 0 && n_fds == 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_process_native_file(s, fds[0], ucred, tv, label, label_len);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Got too many file descriptors via native socket. Ignoring.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (n > 0 && n_fds == 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_process_audit_message(s, s->buffer, n, ucred, &sa, msghdr.msg_namelen);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Got file descriptors via audit socket. Ignoring.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int dispatch_sigusr1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("Received request to flush runtime journal from PID " PID_FMT, si->ssi_pid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) touch("/run/systemd/journal/flushed");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int dispatch_sigusr2(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("Received request to rotate journal from PID " PID_FMT, si->ssi_pid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Let clients know when the most recent rotation happened. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) touch("/run/systemd/journal/rotated");
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmekstatic int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_received_signal(LOG_INFO, si);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int dispatch_sigrtmin1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Received request to sync from PID " PID_FMT, si->ssi_pid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Let clients know when the most recent sync happened. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) touch("/run/systemd/journal/synced");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int setup_signals(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, SIGRTMIN+1, -1) >= 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_signal(s->event, &s->sigusr2_event_source, SIGUSR2, dispatch_sigusr2, s);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_signal(s->event, &s->sigterm_event_source, SIGTERM, dispatch_sigterm, s);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Let's process SIGTERM late, so that we flush all queued
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * messages to disk before we exit */
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek r = sd_event_source_set_priority(s->sigterm_event_source, SD_EVENT_PRIORITY_NORMAL+20);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* When journald is invoked on the terminal (when debugging),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * it's useful if C-c is handled equivalent to SIGTERM. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_priority(s->sigint_event_source, SD_EVENT_PRIORITY_NORMAL+20);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* SIGRTMIN+1 causes an immediate sync. We process this very
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek * late, so that everything else queued at this point is
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek * really written to disk. Clients can watch
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * /run/systemd/journal/synced with inotify until its mtime
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * changes to see when a sync happened. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_signal(s->event, &s->sigrtmin1_event_source, SIGRTMIN+1, dispatch_sigrtmin1, s);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk r = sd_event_source_set_priority(s->sigrtmin1_event_source, SD_EVENT_PRIORITY_NORMAL+15);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchukstatic int server_parse_proc_cmdline(Server *s) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk const char *p;
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m");
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk r = extract_first_word(&p, &word, NULL, 0);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk return log_error_errno(r, "Failed to parse journald syntax \"%s\": %m", line);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk if (startswith(word, "systemd.journald.forward_to_syslog=")) {
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35);
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk } else if (startswith(word, "systemd.journald.forward_to_console=")) {
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (startswith(word, "systemd.journald.forward_to_wall=")) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk } else if (startswith(word, "systemd.journald"))
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_warning("Invalid systemd.journald parameter. Ignoring.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* do not warn about state here, since probably systemd already did */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int server_parse_config_file(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return config_parse_many(PKGSYSCONFDIR "/journald.conf",
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek CONF_PATHS_NULSTR("systemd/journald.conf.d"),
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek config_item_perf_lookup, journald_gperf_lookup,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int server_dispatch_sync(sd_event_source *es, usec_t t, void *userdata) {
d288f79fb4a2fe4a93cf99f74dacd2cebd3f2440Zbigniew Jędrzejewski-Szmekint server_schedule_sync(Server *s, int priority) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->sync_interval_usec > 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_now(s->event, CLOCK_MONOTONIC, &when);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_priority(s->sync_event_source, SD_EVENT_PRIORITY_IMPORTANT);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_time(s->sync_event_source, when);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_ONESHOT);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int dispatch_hostname_change(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int server_open_hostname(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->hostname_fd = open("/proc/sys/kernel/hostname", O_RDONLY|O_CLOEXEC|O_NDELAY|O_NOCTTY);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(errno, "Failed to open /proc/sys/kernel/hostname: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_io(s->event, &s->hostname_event_source, s->hostname_fd, 0, dispatch_hostname_change, s);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* kernels prior to 3.2 don't support polling this file. Ignore
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * the failure. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(r, "Failed to register hostname fd in event loop, ignoring: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->hostname_fd = safe_close(s->hostname_fd);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(r, "Failed to register hostname fd in event loop: %m");
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk r = sd_event_source_set_priority(s->hostname_event_source, SD_EVENT_PRIORITY_IMPORTANT-10);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk return log_error_errno(r, "Failed to adjust priority of host name event source: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int dispatch_notify_event(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
d288f79fb4a2fe4a93cf99f74dacd2cebd3f2440Zbigniew Jędrzejewski-Szmek assert(s->notify_event_source == es);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* The $NOTIFY_SOCKET is writable again, now send exactly one
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * message on it. Either it's the wtachdog event, the initial
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * READY=1 event or an stdout stream event. If there's nothing
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * to write anymore, turn our event source off. The next time
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * there's something to send it will be turned on again. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek static const char p[] =
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek "STATUS=Processing requests...";
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek l = send(s->notify_fd, p, strlen(p), MSG_DONTWAIT);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(errno, "Failed to send READY=1 notification message: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Sent READY=1 notification.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek static const char p[] =
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek l = send(s->notify_fd, p, strlen(p), MSG_DONTWAIT);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(errno, "Failed to send WATCHDOG=1 notification message: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Sent WATCHDOG=1 notification.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (s->stdout_streams_notify_queue)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Dispatch one stream notification event */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek stdout_stream_send_notify(s->stdout_streams_notify_queue);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Leave us enabled if there's still more to to do. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->send_watchdog || s->stdout_streams_notify_queue)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* There was nothing to do anymore, let's turn ourselves off. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_enabled(es, SD_EVENT_OFF);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(r, "Failed to turn off notify event source: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int dispatch_watchdog(sd_event_source *es, uint64_t usec, void *userdata) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_enabled(s->notify_event_source, SD_EVENT_ON);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning_errno(r, "Failed to turn on notify event source: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_time(s->watchdog_event_source, usec + s->watchdog_usec / 2);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(r, "Failed to restart watchdog event source: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ON);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return log_error_errno(r, "Failed to enable watchdog event source: %m");
assert(s);
return -EINVAL;
return -EINVAL;
if (s->notify_fd < 0)
r = sd_event_add_io(s->event, &s->notify_event_source, s->notify_fd, EPOLLOUT, dispatch_notify_event, s);
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*3/4, dispatch_watchdog, s);
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->sync_scheduled = false;
s->forward_to_wall = true;
if (!s->user_journals)
return log_oom();
if (!s->mmap)
return log_oom();
n = sd_listen_fds(true);
if (s->native_fd >= 0) {
return -EINVAL;
if (s->stdout_fd >= 0) {
return -EINVAL;
if (s->syslog_fd >= 0) {
return -EINVAL;
if (s->audit_fd >= 0) {
return -EINVAL;
if (!fds) {
if (!fds)
return log_oom();
return log_oom();
/* systemd-journald.socket: /run/systemd/journal/stdout */
r = server_open_stdout_socket(s);
/* systemd-journald-dev-log.socket: /run/systemd/journal/dev-log */
r = server_open_syslog_socket(s);
/* systemd-journald.socket: /run/systemd/journal/socket */
r = server_open_native_socket(s);
r = server_open_dev_kmsg(s);
r = server_open_audit(s);
r = server_open_kernel_seqnum(s);
r = server_open_hostname(s);
r = setup_signals(s);
if (!s->udev)
return -ENOMEM;
if (!s->rate_limit)
return -ENOMEM;
(void) server_connect_notify(s);
return system_journal_open(s, false);
#ifdef HAVE_GCRYPT
JournalFile *f;
Iterator i;
usec_t n;
if (s->system_journal)
JournalFile *f;
assert(s);
while (s->stdout_streams)
if (s->system_journal)
if (s->runtime_journal)
if (s->rate_limit)
if (s->kernel_seqnum)
if (s->mmap)
DEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting");
DEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting");