journald-server.c revision db91ea32aa223d1b087d99811226a9c59a1bb281
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"
7f1ad696a273703789b624fe0b209fb63e953016Lennart Poettering#define DEFAULT_RATE_LIMIT_INTERVAL (10*USEC_PER_SEC)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic const char* const storage_table[] = {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek [STORAGE_VOLATILE] = "volatile",
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek [STORAGE_PERSISTENT] = "persistent",
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekDEFINE_STRING_TABLE_LOOKUP(storage, Storage);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekDEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic const char* const split_mode_table[] = {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekDEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-SzmekDEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic uint64_t available_space(Server *s) {
7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer const char *f;
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek uint64_t sum = 0, avail = 0, ss_avail = 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts)
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek return s->cached_available_space;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_id128_get_machine(&machine);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek p = strappend(f, sd_id128_to_string(machine, ids));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (fstatvfs(dirfd(d), &ss) < 0)
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 sum += (uint64_t) st.st_blocks * 512UL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek avail = sum >= m->max_use ? 0 : m->max_use - sum;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek ss_avail = ss.f_bsize * ss.f_bavail;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek ss_avail = ss_avail < m->keep_free ? 0 : ss_avail - m->keep_free;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek s->cached_available_space = avail;
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek s->cached_available_space_timestamp = ts;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void server_read_file_gid(Server *s) {
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek r = get_group_creds(&adm, &s->file_gid);
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek log_warning("Failed to resolve 'adm' group: %s", strerror(-r));
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek /* if we couldn't read the gid, then it will be 0, but that's
348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek * fine and we shouldn't try to resolve the group again, so
670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek * let's just pretend it worked right-away. */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid server_fix_perms(Server *s, JournalFile *f, uid_t uid) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = fchmod_and_fchown(f->fd, 0640, 0, s->file_gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Failed to fix access mode/rights on %s, ignoring: %s", f->path, strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("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 log_warning("Failed to patch ACL on %s, ignoring: %m", f->path);
23ad4dd8844c582929115a11ed2830a1371568d6Jan Alexander Steffens (heftig) if (acl_get_permset(entry, &permset) < 0 ||
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek acl_add_perm(permset, ACL_READ) < 0 ||
23ad4dd8844c582929115a11ed2830a1371568d6Jan Alexander Steffens (heftig) log_warning("Failed to patch ACL on %s, ignoring: %m", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("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 = hashmap_get(s->user_journals, UINT32_TO_PTR(uid));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-%lu.journal",
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek SD_ID128_FORMAT_VAL(machine), (unsigned long) uid) < 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek while (hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) {
43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt /* Too many open? Then let's close one */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = 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, s->system_journal, &f);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek r = journal_file_rotate(&s->runtime_journal, s->compress, false);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek log_error("Failed to rotate %s: %s", s->runtime_journal->path, strerror(-r));
c33b329709ebe2755181980a050d02ec7c81ed87Michal Schmidt log_error("Failed to create new runtime journal: %s", strerror(-r));
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek server_fix_perms(s, s->runtime_journal, 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_rotate(&s->system_journal, s->compress, s->seal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to rotate %s: %s", s->system_journal->path, strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to create new system journal: %s", strerror(-r));
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek server_fix_perms(s, s->system_journal, 0);
43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek r = journal_file_rotate(&f, s->compress, s->seal);
fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek log_error("Failed to rotate %s: %s", f->path, strerror(-r));
43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt log_error("Failed to create user journal: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek hashmap_replace(s->user_journals, k, f);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_fix_perms(s, f, PTR_TO_UINT32(k));
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk log_error("Failed to get machine ID: %s", strerror(-r));
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek r = journal_directory_vacuum(p, s->system_metrics.max_use, s->system_metrics.keep_free, s->max_retention_usec, &s->oldest_file_usec);
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek if (r < 0 && r != -ENOENT)
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek log_error("Failed to vacuum %s: %s", p, strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_directory_vacuum(p, s->runtime_metrics.max_use, s->runtime_metrics.keep_free, s->max_retention_usec, &s->oldest_file_usec);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0 && r != -ENOENT)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to vacuum %s: %s", p, strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->cached_available_space_timestamp = 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic char *shortened_cgroup_path(pid_t pid) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek char _cleanup_free_ *process_path = NULL, *init_path = NULL;
63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, pid, &process_path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 1, &init_path);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering if (startswith(process_path, init_path)) {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering path = strdup(process_path + strlen(init_path));
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poetteringbool shall_try_append_again(JournalFile *f, int r) {
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* -E2BIG Hit configured limit
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -EFBIG Hit fs limit
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -EDQUOT Quota limit hit
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -ENOSPC Disk full
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -EHOSTDOWN Other machine
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -EBUSY Unclean shutdown
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -EPROTONOSUPPORT Unsupported feature
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -EBADMSG Corrupted
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -ENODATA Truncated
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering -ESHUTDOWN Already archived */
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering log_debug("%s: Allocation limit reached, rotating.", f->path);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering else if (r == -EHOSTDOWN)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering log_info("%s: Journal file from other machine, rotating.", f->path);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering else if (r == -EBUSY)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering log_info("%s: Unclean shutdown, rotating.", f->path);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering log_info("%s: Unsupported feature, rotating.", f->path);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN)
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering log_warning("%s: Journal file corrupted, rotating.", f->path);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n) {
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);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (vacuumed || !shall_try_append_again(f, r)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to write entry, ignoring: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to write entry, ignoring: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void dispatch_message_real(
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct iovec *iovec, unsigned n, unsigned m,
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk char _cleanup_free_ *pid = NULL, *uid = NULL, *gid = NULL,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek *source_time = NULL, *boot_id = NULL, *machine_id = NULL,
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek *comm = NULL, *cmdline = NULL, *hostname = NULL,
e40ec7aec5e64cd0cfa5fc556d6a9747229b5794Zbigniew Jędrzejewski-Szmek *audit_session = NULL, *audit_loginuid = NULL,
e40ec7aec5e64cd0cfa5fc556d6a9747229b5794Zbigniew Jędrzejewski-Szmek *exe = NULL, *cgroup = NULL, *session = NULL,
e40ec7aec5e64cd0cfa5fc556d6a9747229b5794Zbigniew Jędrzejewski-Szmek *owner_uid = NULL, *unit = NULL, *selinux_context = NULL;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uid_t loginuid = 0, realuid = 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(n + N_IOVEC_META_FIELDS <= m);
e40ec7aec5e64cd0cfa5fc556d6a9747229b5794Zbigniew Jędrzejewski-Szmek if (asprintf(&pid, "_PID=%lu", (unsigned long) ucred->pid) >= 0)
d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering if (asprintf(&uid, "_UID=%lu", (unsigned long) ucred->uid) >= 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], uid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (asprintf(&gid, "_GID=%lu", (unsigned long) ucred->gid) >= 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], gid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], comm);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], exe);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = get_process_cmdline(ucred->pid, LINE_MAX, false, &t);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], cmdline);
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering r = audit_session_from_pid(ucred->pid, &audit);
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering if (asprintf(&audit_session, "_AUDIT_SESSION=%lu", (unsigned long) audit) >= 0)
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering IOVEC_SET_STRING(iovec[n++], audit_session);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = audit_loginuid_from_pid(ucred->pid, &loginuid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (asprintf(&audit_loginuid, "_AUDIT_LOGINUID=%lu", (unsigned long) loginuid) >= 0)
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], audit_loginuid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek t = shortened_cgroup_path(ucred->pid);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek cgroup = strappend("_SYSTEMD_CGROUP=", t);
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], cgroup);
c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther if (sd_pid_get_session(ucred->pid, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek session = strappend("_SYSTEMD_SESSION=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], session);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (sd_pid_get_owner_uid(ucred->uid, &owner) >= 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (asprintf(&owner_uid, "_SYSTEMD_OWNER_UID=%lu", (unsigned long) owner) >= 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], owner_uid);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (cg_pid_get_unit(ucred->pid, &t) >= 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek unit = strappend("_SYSTEMD_UNIT=", t);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek unit = strappend("_SYSTEMD_UNIT=", unit_id);
3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden selinux_context = malloc(sizeof("_SELINUX_CONTEXT=") + label_len);
3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden memcpy(selinux_context, "_SELINUX_CONTEXT=", sizeof("_SELINUX_CONTEXT=")-1);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek memcpy(selinux_context+sizeof("_SELINUX_CONTEXT=")-1, label, label_len);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek selinux_context[sizeof("_SELINUX_CONTEXT=")-1+label_len] = 0;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], selinux_context);
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering selinux_context = strappend("_SELINUX_CONTEXT=", con);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], selinux_context);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (asprintf(&source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu",
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek (unsigned long long) timeval_load(tv)) >= 0)
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], source_time);
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering /* Note that strictly speaking storing the boot id here is
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering * redundant since the entry includes this in-line
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering * anyway. However, we need this indexed, too. */
ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering if (asprintf(&boot_id, "_BOOT_ID=%s", sd_id128_to_string(id, idbuf)) >= 0)
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek if (asprintf(&machine_id, "_MACHINE_ID=%s", sd_id128_to_string(id, idbuf)) >= 0)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek IOVEC_SET_STRING(iovec[n++], machine_id);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek hostname = strappend("_HOSTNAME=", t);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek s->split_mode == SPLIT_NONE ? 0 :
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek (realuid == 0 ? 0 : loginuid)), iovec, n);
19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poetteringvoid server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {
0a244b8ecb6dfcb381fe831dc2aa9bacb2c12975Lennart Poettering struct iovec iovec[N_IOVEC_META_FIELDS + 4];
2d43b190901902dbd98ccea77c1d1ddc9e2a9955Dan McGee IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver");
6baa7db00812437bbc87e73faa1a11b6cf631958Lennart Poettering vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap);
d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering if (!sd_id128_equal(message_id, SD_ID128_NULL)) {
d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering snprintf(mid, sizeof(mid), 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);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek struct iovec *iovec, unsigned n, unsigned m,
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek const char *label, size_t label_len,
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek char _cleanup_free_ *path = NULL;
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (LOG_PRI(priority) > s->max_level_store)
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek path = shortened_cgroup_path(ucred->pid);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek /* example: /user/lennart/3/foobar
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek * So let's cut of everything past the third /, since that is
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek * where user directories start */
de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek rl = journal_rate_limit_test(s->rate_limit, path,
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek priority & LOG_PRIMASK, available_space(s));
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek /* Write a suppression message if we suppressed something */
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED,
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek "Suppressed %u messages from %s", rl - 1, path);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmekstatic int system_journal_open(Server *s) {
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek r = sd_id128_get_machine(&machine);
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) &&
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek access("/run/systemd/journal/flushed", F_OK) >= 0) {
19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering /* If in auto mode: first try to create the machine
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek * path, but not the prefix.
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek * If in persistent mode: create /var/log/journal and
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek * the machine path */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->storage == STORAGE_PERSISTENT)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (void) mkdir("/var/log/journal/", 0755);
a569398925430de1f8479262e8ab39502054f2e9Lennart Poettering fn = strappend("/var/log/journal/", ids);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering fn = strjoin("/var/log/journal/", ids, "/system.journal", NULL);
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);
40adcda869bda55f44b57fd3a2bd71d006dfb51bLennart Poettering server_driver_message(s, SD_ID128_NULL, "Allowing system journal files to grow to %s.",
759c945a43577d56e85a927f15e7d9aaa94a4e4aColin Walters format_bytes(fb, sizeof(fb), s->system_metrics.max_use));
edc3797f7cd9e37c24e5241cac3263e7c918f732Lennart Poettering } else if (r < 0) {
edc3797f7cd9e37c24e5241cac3263e7c918f732Lennart Poettering log_warning("Failed to open system journal: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek fn = strjoin("/run/log/journal/", ids, "/system.journal", NULL);
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew 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("Failed to open runtime journal: %s", strerror(-r));
e2cc6eca73cd1df8be552d7c23f9ff3d69c06f1eLennart Poettering /* OK, we really need the runtime journal, so create
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * it if necessary. */
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 log_error("Failed to open runtime journal: %s", strerror(-r));
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering server_fix_perms(s, s->runtime_journal, 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_driver_message(s, SD_ID128_NULL, "Allowing runtime journal files to grow to %s.",
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek format_bytes(fb, sizeof(fb), s->runtime_metrics.max_use));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint server_flush_to_var(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->storage != STORAGE_AUTO &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->storage != STORAGE_PERSISTENT)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_id128_get_machine(&machine);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to get machine id: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to read runtime journal: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_journal_set_data_threshold(j, 0);
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("Can't read entry: %s", strerror(-r));
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("Can't write entry: %s", strerror(-r));
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Can't write entry: %s", strerror(-r));
caa2f4c0c9613b2e02aafa308c8fb092576014a9Zbigniew Jędrzejewski-Szmek journal_file_post_change(s->system_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek journal_file_close(s->runtime_journal);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek rm_rf("/run/log/journal", false, true, false);
e40ec7aec5e64cd0cfa5fc556d6a9747229b5794Zbigniew Jędrzejewski-Szmekint process_event(Server *s, struct epoll_event *ev) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (ev->data.fd == s->signal_fd) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek n = read(s->signal_fd, &sfsi, sizeof(sfsi));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (n != sizeof(sfsi)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (errno == EINTR || errno == EAGAIN)
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("Received SIG%s", signal_to_string(sfsi.ssi_signo));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (sfsi.ssi_signo == SIGUSR1) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek touch("/run/systemd/journal/flushed");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (sfsi.ssi_signo == SIGUSR2) {
fc1d70af2101e16c9e6f3c5bfd5ab315ee9e6daeLennart Poettering } else if (ev->data.fd == s->dev_kmsg_fd) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Got invalid event from epoll.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (ev->data.fd == s->native_fd ||
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Got invalid event from epoll.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* We use NAME_MAX space for the
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * SELinux label here. The kernel
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * currently enforces no limit, but
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * according to suggestions from the
caa2f4c0c9613b2e02aafa308c8fb092576014a9Zbigniew Jędrzejewski-Szmek * SELinux people this will change and
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * it will probably be identical to
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * NAME_MAX. For now we use that, but
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * this should be updated one day when
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * the final limit is known.*/
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek CMSG_SPACE(sizeof(struct timeval)) +
fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering CMSG_SPACE(NAME_MAX)]; /* selinux label */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("SIOCINQ failed: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (s->buffer_size < (size_t) v) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek l = MAX(LINE_MAX + (size_t) v, s->buffer_size * 2);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Couldn't increase buffer.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek msghdr.msg_controllen = sizeof(control);
253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poettering n = recvmsg(ev->data.fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("recvmsg() failed: %m");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
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 &&
763c7aa288485cf5ab627fe1d25ff58e76f9dacbZbigniew Jędrzejewski-Szmek cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek tv = (struct timeval*) CMSG_DATA(cmsg);
fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering else if (cmsg->cmsg_level == SOL_SOCKET &&
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering if (n > 0 && n_fds == 0) {
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering } else if (n_fds > 0)
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_warning("Got file descriptors via syslog socket. Ignoring.");
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering if (n > 0 && n_fds == 0)
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering server_process_native_file(s, fds[0], ucred, tv, label, label_len);
bdd13f6be4b588568683a1ab54f421fc6a636dbbZbigniew Jędrzejewski-Szmek log_warning("Got too many file descriptors via native socket. Ignoring.");
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering } else if (ev->data.fd == s->stdout_fd) {
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_error("Got invalid event from epoll.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if ((ev->events|EPOLLIN|EPOLLHUP) != (EPOLLIN|EPOLLHUP)) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Got invalid event from epoll.");
875c2e220e2611165e09051c4747971811f1de58Lennart Poettering /* If it is none of the well-known fds, it must be an
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek * stdout stream fd. Note that this is a bit ugly here
875c2e220e2611165e09051c4747971811f1de58Lennart Poettering * (since we rely that none of the well-known fds
875c2e220e2611165e09051c4747971811f1de58Lennart Poettering * could be interpreted as pointer), but nonetheless
875c2e220e2611165e09051c4747971811f1de58Lennart Poettering * safe, since the well-known fds would never get an
875c2e220e2611165e09051c4747971811f1de58Lennart Poettering * fd > 4096, i.e. beyond the first memory page */
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert_se(sigemptyset(&mask) == 0);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering s->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering if (epoll_ctl(s->epoll_fd, EPOLL_CTL_ADD, s->signal_fd, &ev) < 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int server_parse_proc_cmdline(Server *s) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = read_one_line_file("/proc/cmdline", &line);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
0b97208d8c39131f8a7cfcfccb5c40b86af44ee5Lennart Poettering if (startswith(word, "systemd.journald.forward_to_syslog=")) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) {
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33);
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering } else if (startswith(word, "systemd.journald.forward_to_console=")) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);
3bfd4e0c6341b0ef946d2198f089743fa99e0a97WaLyong Cho } else if (startswith(word, "systemd.journald"))
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Invalid systemd.journald parameter. Ignoring.");
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poetteringstatic int server_parse_config_file(Server *s) {
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering static const char *fn = "/etc/systemd/journald.conf";
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek FILE _cleanup_fclose_ *f = NULL;
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_warning("Failed to open configuration file %s: %m", fn);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = config_parse(fn, f, "Journal\0", config_item_perf_lookup,
4daf54a851e4fb7ed1a13c3117bba12528fd2c7fZbigniew Jędrzejewski-Szmek (void*) journald_gperf_lookup, false, s);
6203e07a83214a55bb1f88508fcda2005c601deaLennart Poettering log_warning("Failed to parse configuration file: %s", strerror(-r));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->syslog_fd = s->native_fd = s->stdout_fd = s->signal_fd = s->epoll_fd = s->dev_kmsg_fd = -1;
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL;
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->max_level_syslog = LOG_DEBUG;
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics));
151b9b9662a90455262ce575a8a8ae74bf4ff336Lennart Poettering memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek mkdir_p("/run/systemd/journal", 0755);
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek s->user_journals = hashmap_new(trivial_hash_func, trivial_compare_func);
b5884878a2874447b2a9f07f324a7cd909d96d48Lennart Poettering log_error("Failed to create epoll object: %m");
db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek log_error("Failed to read listening file descriptors from environment: %s", strerror(-n));
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Too many native sockets passed.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Too many stdout sockets passed.");
40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen } else if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/dev/log", 0) > 0) {
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Too many /dev/log sockets passed.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Unknown socket passed.");
d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = server_open_native_socket(s);
26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst);
6a0f1f6d5af7c7300d3db7a0ba2b068f8abd222bLennart Poetteringvoid server_maybe_append_tags(Server *s) {
f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering journal_file_maybe_append_tag(s->system_journal, n);
0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering while ((f = hashmap_steal_first(s->user_journals)))