57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <sys/signalfd.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <sys/ioctl.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <linux/sockios.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <sys/statvfs.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <sys/mman.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <sys/timerfd.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <libudev.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "sd-journal.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "sd-messages.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "sd-daemon.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "fileio.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "mkdir.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "hashmap.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journal-file.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "socket-util.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "cgroup-util.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "list.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "missing.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "conf-parser.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "selinux-util.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journal-internal.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journal-vacuum.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journal-authenticate.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-rate-limit.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-kmsg.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-syslog.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-stream.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-console.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-native.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "journald-server.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_ACL

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <sys/acl.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <acl/libacl.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include "acl-util.h"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_SELINUX

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#include <selinux/selinux.h>

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#define USER_JOURNALS_MAX 1024

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#define DEFAULT_RATE_LIMIT_BURST 1000

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic const char* const storage_table[] = {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [STORAGE_AUTO] = "auto",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [STORAGE_VOLATILE] = "volatile",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [STORAGE_PERSISTENT] = "persistent",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [STORAGE_NONE] = "none"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen};

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom GundersenDEFINE_STRING_TABLE_LOOKUP(storage, Storage);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom GundersenDEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic const char* const split_mode_table[] = {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [SPLIT_NONE] = "none",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [SPLIT_UID] = "uid",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen [SPLIT_LOGIN] = "login"

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen};

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom GundersenDEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom GundersenDEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic uint64_t available_space(Server *s, bool verbose) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char ids[33];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen _cleanup_free_ char *p = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_t machine;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct statvfs ss;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uint64_t sum = 0, ss_avail = 0, avail = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen _cleanup_closedir_ DIR *d = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen usec_t ts;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen const char *f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen JournalMetrics *m;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ts = now(CLOCK_MONOTONIC);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen && !verbose)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->cached_available_space;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_machine(&machine);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->system_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = "/var/log/journal/";

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen m = &s->system_metrics;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = "/run/log/journal/";

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen m = &s->runtime_metrics;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(m);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen p = strappend(f, sd_id128_to_string(machine, ids));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!p)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen d = opendir(p);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!d)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (fstatvfs(dirfd(d), &ss) < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen for (;;) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct stat st;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct dirent *de;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen union dirent_storage buf;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = readdir_r(d, &buf.de, &de);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r != 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen break;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!de)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen break;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!endswith(de->d_name, ".journal") &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen !endswith(de->d_name, ".journal~"))

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen continue;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen continue;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!S_ISREG(st.st_mode))

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen continue;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sum += (uint64_t) st.st_blocks * 512UL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ss_avail = ss.f_bsize * ss.f_bavail;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen avail = ss_avail > m->keep_free ? ss_avail - m->keep_free : 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->cached_available_space = MIN(m->max_use, avail) > sum ? MIN(m->max_use, avail) - sum : 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->cached_available_space_timestamp = ts;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (verbose) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen "%s journal is using %s (max %s, leaving %s of free %s, current limit %s).",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->system_journal ? "Permanent" : "Runtime",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen format_bytes(fb1, sizeof(fb1), sum),

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen format_bytes(fb2, sizeof(fb2), m->max_use),

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen format_bytes(fb3, sizeof(fb3), m->keep_free),

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen format_bytes(fb4, sizeof(fb4), ss_avail),

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen format_bytes(fb5, sizeof(fb5), MIN(m->max_use, avail)));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->cached_available_space;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenvoid server_fix_perms(Server *s, JournalFile *f, uid_t uid) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_ACL

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_t acl;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_entry_t entry;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_permset_t permset;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = fchmod(f->fd, 0640);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to fix access mode on %s, ignoring: %s", f->path, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_ACL

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (uid <= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl = acl_get_fd(f->fd);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!acl) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to read ACL on %s, ignoring: %m", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = acl_find_uid(acl, uid, &entry);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r <= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (acl_create_entry(&acl, &entry) < 0 ||

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_set_tag_type(entry, ACL_USER) < 0 ||

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_set_qualifier(entry, &uid) < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to patch ACL on %s, ignoring: %m", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* We do not recalculate the mask unconditionally here,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (acl_get_permset(entry, &permset) < 0 ||

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_add_perm(permset, ACL_READ) < 0 ||

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen calc_acl_mask_if_needed(&acl) < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to patch ACL on %s, ignoring: %m", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (acl_set_fd(f->fd, acl) < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to set ACL on %s, ignoring: %m", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenfinish:

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen acl_free(acl);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic JournalFile* find_journal(Server *s, uid_t uid) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen _cleanup_free_ char *p = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen JournalFile *f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_t machine;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* We split up user logs only on /var, not on /run. If the

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->runtime_journal)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->runtime_journal;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (uid <= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->system_journal;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_machine(&machine);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->system_journal;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = hashmap_get(s->user_journals, UINT32_TO_PTR(uid));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (f)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-%lu.journal",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen SD_ID128_FORMAT_VAL(machine), (unsigned long) uid) < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->system_journal;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen while (hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Too many open? Then let's close one */

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = hashmap_steal_first(s->user_journals);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_file_close(f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_open_reliably(p, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->system_journal;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_fix_perms(s, f, uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_file_close(f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return s->system_journal;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenvoid server_rotate(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen JournalFile *f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen void *k;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen Iterator i;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("Rotating...");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->runtime_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_rotate(&s->runtime_journal, s->compress, false);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->runtime_journal)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to rotate %s: %s", s->runtime_journal->path, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to create new runtime journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_fix_perms(s, s->runtime_journal, 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->system_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_rotate(&s->system_journal, s->compress, s->seal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->system_journal)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to rotate %s: %s", s->system_journal->path, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to create new system journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_fix_perms(s, s->system_journal, 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_rotate(&f, s->compress, s->seal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (f)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to rotate %s: %s", f->path, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to create user journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen hashmap_remove(s->user_journals, k);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen hashmap_replace(s->user_journals, k, f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_fix_perms(s, f, PTR_TO_UINT32(k));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenvoid server_sync(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen static const struct itimerspec sync_timer_disable = {};

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen JournalFile *f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen void *k;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen Iterator i;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->system_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_set_offline(s->system_journal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to sync system journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_set_offline(f);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to sync user journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = timerfd_settime(s->sync_timer_fd, 0, &sync_timer_disable, NULL);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to disable max timer: %m");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->sync_scheduled = false;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenvoid server_vacuum(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char ids[33];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_t machine;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("Vacuuming...");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->oldest_file_usec = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_machine(&machine);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to get machine ID: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_to_string(machine, ids);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->system_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *p = strappenda("/var/log/journal/", ids);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_directory_vacuum(p, s->system_metrics.max_use, s->system_metrics.keep_free, s->max_retention_usec, &s->oldest_file_usec);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0 && r != -ENOENT)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to vacuum %s: %s", p, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->runtime_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *p = strappenda("/run/log/journal/", ids);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_directory_vacuum(p, s->runtime_metrics.max_use, s->runtime_metrics.keep_free, s->max_retention_usec, &s->oldest_file_usec);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0 && r != -ENOENT)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to vacuum %s: %s", p, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->cached_available_space_timestamp = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenbool shall_try_append_again(JournalFile *f, int r) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* -E2BIG Hit configured limit

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("%s: Allocation limit reached, rotating.", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (r == -EHOSTDOWN)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_info("%s: Journal file from other machine, rotating.", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (r == -EBUSY)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_info("%s: Unclean shutdown, rotating.", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (r == -EPROTONOSUPPORT)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_info("%s: Unsupported feature, rotating.", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("%s: Journal file corrupted, rotating.", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return false;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return true;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen JournalFile *f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen bool vacuumed = false;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(iovec);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(n > 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = find_journal(s, uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!f)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (journal_file_rotate_suggested(f, s->max_file_usec)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_rotate(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_vacuum(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen vacuumed = true;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = find_journal(s, uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!f)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_schedule_sync(s, priority);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (vacuumed || !shall_try_append_again(f, r)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen size_t size = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen unsigned i;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen for (i = 0; i < n; i++)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen size += iovec[i].iov_len;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to write entry (%d items, %zu bytes), ignoring: %s", n, size, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_rotate(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_vacuum(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = find_journal(s, uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!f)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("Retrying write.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen size_t size = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen unsigned i;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen for (i = 0; i < n; i++)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen size += iovec[i].iov_len;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %s", n, size, strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_schedule_sync(s, priority);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic void dispatch_message_real(

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen Server *s,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct iovec *iovec, unsigned n, unsigned m,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct ucred *ucred,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct timeval *tv,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen const char *label, size_t label_len,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen const char *unit_id,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int priority,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen pid_t object_pid) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen boot_id[sizeof("_BOOT_ID=") + 32] = "_BOOT_ID=",

bba061662b0f759abb43bad60c9733305c191045Tom Gundersen machine_id[sizeof("_MACHINE_ID=") + 32] = "_MACHINE_ID=",

bba061662b0f759abb43bad60c9733305c191045Tom Gundersen o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)],

bba061662b0f759abb43bad60c9733305c191045Tom Gundersen o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)],

bba061662b0f759abb43bad60c9733305c191045Tom Gundersen o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uid_t object_uid;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen gid_t object_gid;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *x;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_t id;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *t, *c;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uid_t realuid = 0, owner = 0, journal_uid;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen bool owner_valid = false;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_AUDIT

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uint32_t audit;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uid_t loginuid;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(iovec);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(n > 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ucred) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen realuid = ucred->uid;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(pid, "_PID=%lu", (unsigned long) ucred->pid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], pid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(uid, "_UID=%lu", (unsigned long) ucred->uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(gid, "_GID=%lu", (unsigned long) ucred->gid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], gid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_comm(ucred->pid, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_COMM=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_exe(ucred->pid, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_EXE=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_cmdline(ucred->pid, 0, false, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_CMDLINE=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_capeff(ucred->pid, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_CAP_EFFECTIVE=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_AUDIT

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = audit_session_from_pid(ucred->pid, &audit);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(audit_session, "_AUDIT_SESSION=%lu", (unsigned long) audit);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], audit_session);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = audit_loginuid_from_pid(ucred->pid, &loginuid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(audit_loginuid, "_AUDIT_LOGINUID=%lu", (unsigned long) loginuid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], audit_loginuid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = cg_pid_get_path_shifted(ucred->pid, NULL, &c);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *session = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SYSTEMD_CGROUP=", c);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = cg_path_get_session(c, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen session = strappenda("_SYSTEMD_SESSION=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], session);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_owner_uid(c, &owner) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen owner_valid = true;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(owner_uid, "_SYSTEMD_OWNER_UID=%lu", (unsigned long) owner);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], owner_uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_unit(c, &t) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SYSTEMD_UNIT=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (unit_id && !session) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SYSTEMD_UNIT=", unit_id);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_user_unit(c, &t) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SYSTEMD_USER_UNIT=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (unit_id && session) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SYSTEMD_USER_UNIT=", unit_id);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_slice(c, &t) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SYSTEMD_SLICE=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(c);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_SELINUX

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (use_selinux()) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (label) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = alloca(sizeof("_SELINUX_CONTEXT=") + label_len);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen security_context_t con;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (getpidcon(ucred->pid, &con) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_SELINUX_CONTEXT=", con);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen freecon(con);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(n <= m);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (object_pid) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_uid(object_pid, &object_uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(o_uid, "OBJECT_UID=%lu", (unsigned long) object_uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], o_uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_gid(object_pid, &object_gid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(o_gid, "OBJECT_GID=%lu", (unsigned long) object_gid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], o_gid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_comm(object_pid, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_COMM=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_exe(object_pid, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_EXE=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = get_process_cmdline(object_pid, 0, false, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_CMDLINE=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#ifdef HAVE_AUDIT

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = audit_session_from_pid(object_pid, &audit);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%lu", (unsigned long) audit);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], o_audit_session);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = audit_loginuid_from_pid(object_pid, &loginuid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID=%lu", (unsigned long) loginuid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], o_audit_loginuid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen#endif

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = cg_pid_get_path_shifted(object_pid, NULL, &c);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_SYSTEMD_CGROUP=", c);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = cg_path_get_session(c, &t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_SYSTEMD_SESSION=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_owner_uid(c, &owner) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID=%lu", (unsigned long) owner);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], o_owner_uid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_unit(c, &t) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_SYSTEMD_UNIT=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cg_path_get_user_unit(c, &t) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("OBJECT_SYSTEMD_USER_UNIT=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(c);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(n <= m);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (tv) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], source_time);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Note that strictly speaking storing the boot id here is

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_boot(&id);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_to_string(id, boot_id + strlen("_BOOT_ID="));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], boot_id);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_machine(&id);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_to_string(id, machine_id + strlen("_MACHINE_ID="));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], machine_id);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen t = gethostname_malloc();

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (t) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen x = strappenda("_HOSTNAME=", t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(t);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(n <= m);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->split_mode == SPLIT_UID && realuid > 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Split up strictly by any UID */

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_uid = realuid;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Split up by login UIDs, this avoids creation of

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_uid = owner;

85091685af65831f379580c75b40776c20e245eeTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_uid = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

85091685af65831f379580c75b40776c20e245eeTom Gundersen write_to_journal(s, journal_uid, iovec, n, priority);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenvoid server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char mid[11 + 32 + 1];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char buffer[16 + LINE_MAX + 1];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct iovec iovec[N_IOVEC_META_FIELDS + 4];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int n = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen va_list ap;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct ucred ucred = {};

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(format);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], "PRIORITY=6");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen memcpy(buffer, "MESSAGE=", 8);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen va_start(ap, format);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen va_end(ap);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char_array_0(buffer);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], buffer);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!sd_id128_equal(message_id, SD_ID128_NULL)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen snprintf(mid, sizeof(mid), MESSAGE_ID(message_id));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char_array_0(mid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen IOVEC_SET_STRING(iovec[n++], mid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ucred.pid = getpid();

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ucred.uid = getuid();

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ucred.gid = getgid();

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenvoid server_dispatch_message(

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen Server *s,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct iovec *iovec, unsigned n, unsigned m,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct ucred *ucred,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct timeval *tv,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen const char *label, size_t label_len,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen const char *unit_id,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int priority,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen pid_t object_pid) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int rl, r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen _cleanup_free_ char *path = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *c;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(iovec || n == 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (n == 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (LOG_PRI(priority) > s->max_level_store)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Stop early in case the information will not be stored

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->storage == STORAGE_NONE)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!ucred)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = cg_pid_get_path_shifted(ucred->pid, NULL, &path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* example: /user/lennart/3/foobar

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen c = strchr(path, '/');

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (c) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen c = strchr(c+1, '/');

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (c) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen c = strchr(c+1, '/');

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (c)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen *c = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen rl = journal_rate_limit_test(s->rate_limit, path,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen priority & LOG_PRIMASK, available_space(s, false));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (rl == 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Write a suppression message if we suppressed something */

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (rl > 1)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen "Suppressed %u messages from %s", rl - 1, path);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenfinish:

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic int system_journal_open(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *fn;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_t machine;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char ids[33];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_machine(&machine);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to get machine id: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_to_string(machine, ids);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!s->system_journal &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen access("/run/systemd/journal/flushed", F_OK) >= 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* If in auto mode: first try to create the machine

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->storage == STORAGE_PERSISTENT)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen (void) mkdir("/var/log/journal/", 0755);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen fn = strappenda("/var/log/journal/", ids);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen (void) mkdir(fn, 0755);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen fn = strappenda(fn, "/system.journal");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &s->system_journal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_fix_perms(s, s->system_journal, 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r != -ENOENT && r != -EROFS)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to open system journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!s->runtime_journal &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen (s->storage != STORAGE_NONE)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen fn = strjoin("/run/log/journal/", ids, "/system.journal", NULL);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!fn)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -ENOMEM;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->system_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* Try to open the runtime journal, but only

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_open(fn, O_RDWR, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(fn);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r != -ENOENT)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to open runtime journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* OK, we really need the runtime journal, so create

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen (void) mkdir_parents(fn, 0755);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen free(fn);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to open runtime journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->runtime_journal)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_fix_perms(s, s->runtime_journal, 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen available_space(s, true);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenint server_flush_to_var(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_id128_t machine;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_journal *j = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char ts[FORMAT_TIMESPAN_MAX];

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen usec_t start;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen unsigned n = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->storage != STORAGE_AUTO &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->storage != STORAGE_PERSISTENT)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!s->runtime_journal)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen system_journal_open(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!s->system_journal)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("Flushing to /var...");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen start = now(CLOCK_MONOTONIC);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_id128_get_machine(&machine);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Failed to read runtime journal: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_journal_set_data_threshold(j, 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen SD_JOURNAL_FOREACH(j) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen Object *o = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen JournalFile *f;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen f = j->current_file;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(f && f->current_offset > 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen n++;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Can't read entry: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen continue;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!shall_try_append_again(s->system_journal, r)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Can't write entry: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_rotate(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_vacuum(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!s->system_journal) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("Retrying write.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Can't write entry: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen goto finish;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenfinish:

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_file_post_change(s->system_journal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen journal_file_close(s->runtime_journal);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->runtime_journal = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r >= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen rm_rf("/run/log/journal", false, true, false);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sd_journal_close(j);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen 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);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenint process_event(Server *s, struct epoll_event *ev) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(ev);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ev->data.fd == s->signal_fd) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct signalfd_siginfo sfsi;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ssize_t n;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ev->events != EPOLLIN) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Got invalid event from epoll for %s: %"PRIx32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen "signal fd", ev->events);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen n = read(s->signal_fd, &sfsi, sizeof(sfsi));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (n != sizeof(sfsi)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (n >= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (errno == EINTR || errno == EAGAIN)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -errno;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (sfsi.ssi_signo == SIGUSR1) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_info("Received request to flush runtime journal from PID %"PRIu32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sfsi.ssi_pid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen touch("/run/systemd/journal/flushed");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_flush_to_var(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_sync(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (sfsi.ssi_signo == SIGUSR2) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_info("Received request to rotate journal from PID %"PRIu32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sfsi.ssi_pid);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_rotate(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_vacuum(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_info("Received SIG%s", signal_to_string(sfsi.ssi_signo));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (ev->data.fd == s->sync_timer_fd) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uint64_t t;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_debug("Got sync request from epoll.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = read(ev->data.fd, (void *)&t, sizeof(t));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_sync(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (ev->data.fd == s->dev_kmsg_fd) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ev->events & EPOLLERR)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("/dev/kmsg buffer overrun, some messages lost.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!(ev->events & EPOLLIN)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Got invalid event from epoll for %s: %"PRIx32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen "/dev/kmsg", ev->events);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = server_read_dev_kmsg(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (ev->data.fd == s->native_fd ||

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ev->data.fd == s->syslog_fd) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ev->events != EPOLLIN) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Got invalid event from epoll for %s: %"PRIx32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ev->data.fd == s->native_fd ? "native fd" : "syslog fd",

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ev->events);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen for (;;) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct ucred *ucred = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct timeval *tv = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct cmsghdr *cmsg;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *label = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen size_t label_len = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct iovec iovec;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen union {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct cmsghdr cmsghdr;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* We use NAME_MAX space for the

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen CMSG_SPACE(sizeof(struct timeval)) +

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen CMSG_SPACE(sizeof(int)) + /* fd */

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen CMSG_SPACE(NAME_MAX)]; /* selinux label */

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } control = {};

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct msghdr msghdr = {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen .msg_iov = &iovec,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen .msg_iovlen = 1,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen .msg_control = &control,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen .msg_controllen = sizeof(control),

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen };

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ssize_t n;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int v;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int *fds = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen unsigned n_fds = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ioctl(ev->data.fd, SIOCINQ, &v) < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("SIOCINQ failed: %m");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -errno;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!GREEDY_REALLOC(s->buffer, s->buffer_size, LINE_MAX + (size_t) v))

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return log_oom();

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen iovec.iov_base = s->buffer;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen iovec.iov_len = s->buffer_size;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen n = recvmsg(ev->data.fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (n < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (errno == EINTR || errno == EAGAIN)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("recvmsg() failed: %m");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -errno;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (cmsg->cmsg_level == SOL_SOCKET &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen cmsg->cmsg_type == SCM_CREDENTIALS &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred)))

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ucred = (struct ucred*) CMSG_DATA(cmsg);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (cmsg->cmsg_level == SOL_SOCKET &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen cmsg->cmsg_type == SCM_SECURITY) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen label = (char*) CMSG_DATA(cmsg);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen label_len = cmsg->cmsg_len - CMSG_LEN(0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (cmsg->cmsg_level == SOL_SOCKET &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen cmsg->cmsg_type == SO_TIMESTAMP &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen tv = (struct timeval*) CMSG_DATA(cmsg);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (cmsg->cmsg_level == SOL_SOCKET &&

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen cmsg->cmsg_type == SCM_RIGHTS) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen fds = (int*) CMSG_DATA(cmsg);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ev->data.fd == s->syslog_fd) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (n > 0 && n_fds == 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->buffer[n] = 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (n_fds > 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Got file descriptors via syslog socket. Ignoring.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (n > 0 && n_fds == 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (n == 0 && n_fds == 1)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen server_process_native_file(s, fds[0], ucred, tv, label, label_len);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else if (n_fds > 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Got too many file descriptors via native socket. Ignoring.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen close_many(fds, n_fds);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (ev->data.fd == s->stdout_fd) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (ev->events != EPOLLIN) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Got invalid event from epoll for %s: %"PRIx32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen "stdout fd", ev->events);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen stdout_stream_new(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen StdoutStream *stream;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if ((ev->events|EPOLLIN|EPOLLHUP) != (EPOLLIN|EPOLLHUP)) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Got invalid event from epoll for %s: %"PRIx32,

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen "stdout stream", ev->events);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -EIO;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen /* If it is none of the well-known fds, it must be an

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen stream = ev->data.ptr;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (stdout_stream_process(stream) <= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen stdout_stream_free(stream);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 1;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("Unknown event.");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic int open_signalfd(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sigset_t mask;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen struct epoll_event ev;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert(s);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert_se(sigemptyset(&mask) == 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (s->signal_fd < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("signalfd(): %m");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -errno;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen zero(ev);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ev.events = EPOLLIN;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen ev.data.fd = s->signal_fd;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (epoll_ctl(s->epoll_fd, EPOLL_CTL_ADD, s->signal_fd, &ev) < 0) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_error("epoll_ctl(): %m");

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -errno;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen }

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen}

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersenstatic int server_parse_proc_cmdline(Server *s) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen _cleanup_free_ char *line = NULL;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen char *w, *state;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen size_t l;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen int r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = proc_cmdline(&line);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r <= 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return 0;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen FOREACH_WORD_QUOTED(w, l, line, state) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen _cleanup_free_ char *word;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen word = strndup(w, l);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (!word)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen return -ENOMEM;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (startswith(word, "systemd.journald.forward_to_syslog=")) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = parse_boolean(word + 35);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->forward_to_syslog = r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = parse_boolean(word + 33);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->forward_to_kmsg = r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (startswith(word, "systemd.journald.forward_to_console=")) {

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen r = parse_boolean(word + 36);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen if (r < 0)

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen else

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen s->forward_to_console = r;

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen } else if (startswith(word, "systemd.journald"))

57fa1d094cd2c5ac68970526ad0a0754c548e75dTom Gundersen log_warning("Invalid systemd.journald parameter. Ignoring.");