chiark / gitweb /
journald: introduce systemd_journald.forward_to_kmsg=1 (and friends) to enable kmsg...
[elogind.git] / src / journal / journald.c
index e7231d96f78c4dfb6404a7e011179b7b243b2bc1..1ec1542a14d7e92268503b721d2baa815e53a599 100644 (file)
 #include <linux/sockios.h>
 #include <sys/statvfs.h>
 
+#include <systemd/sd-journal.h>
+#include <systemd/sd-login.h>
+#include <systemd/sd-messages.h>
+#include <systemd/sd-daemon.h>
+
 #include "hashmap.h"
 #include "journal-file.h"
-#include "sd-daemon.h"
 #include "socket-util.h"
 #include "acl-util.h"
 #include "cgroup-util.h"
 #include "list.h"
 #include "journal-rate-limit.h"
+#include "journal-internal.h"
+#include "conf-parser.h"
+#include "journald.h"
+#include "virt.h"
 
 #define USER_JOURNALS_MAX 1024
 #define STDOUT_STREAMS_MAX 4096
 
 #define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC)
 
-typedef struct StdoutStream StdoutStream;
-
-typedef struct Server {
-        int epoll_fd;
-        int signal_fd;
-        int syslog_fd;
-        int native_fd;
-        int stdout_fd;
-
-        JournalFile *runtime_journal;
-        JournalFile *system_journal;
-        Hashmap *user_journals;
-
-        uint64_t seqnum;
+#define RECHECK_VAR_AVAILABLE_USEC (30*USEC_PER_SEC)
 
-        char *buffer;
-        size_t buffer_size;
+#define SYSLOG_TIMEOUT_USEC (250*USEC_PER_MSEC)
 
-        JournalRateLimit *rate_limit;
-
-        JournalMetrics metrics;
-        uint64_t max_use;
-        bool compress;
-
-        uint64_t cached_available_space;
-        usec_t cached_available_space_timestamp;
-
-        LIST_HEAD(StdoutStream, stdout_streams);
-        unsigned n_stdout_streams;
-} Server;
+#define N_IOVEC_META_FIELDS 16
 
 typedef enum StdoutStreamState {
-        STDOUT_STREAM_TAG,
+        STDOUT_STREAM_IDENTIFIER,
         STDOUT_STREAM_PRIORITY,
-        STDOUT_STREAM_PRIORITY_PREFIX,
-        STDOUT_STREAM_TEE_CONSOLE,
+        STDOUT_STREAM_LEVEL_PREFIX,
+        STDOUT_STREAM_FORWARD_TO_SYSLOG,
+        STDOUT_STREAM_FORWARD_TO_KMSG,
+        STDOUT_STREAM_FORWARD_TO_CONSOLE,
         STDOUT_STREAM_RUNNING
 } StdoutStreamState;
 
@@ -96,10 +81,12 @@ struct StdoutStream {
 
         struct ucred ucred;
 
-        char *tag;
+        char *identifier;
         int priority;
-        bool priority_prefix:1;
-        bool tee_console:1;
+        bool level_prefix:1;
+        bool forward_to_syslog:1;
+        bool forward_to_kmsg:1;
+        bool forward_to_console:1;
 
         char buffer[LINE_MAX+1];
         size_t length;
@@ -107,16 +94,20 @@ struct StdoutStream {
         LIST_FIELDS(StdoutStream, stdout_stream);
 };
 
+static int server_flush_to_var(Server *s);
+
 static uint64_t available_space(Server *s) {
-        char ids[33];
-        sd_id128_t machine;
-        char *p;
+        char ids[33], *p;
         const char *f;
+        sd_id128_t machine;
         struct statvfs ss;
         uint64_t sum = 0, avail = 0, ss_avail = 0;
         int r;
         DIR *d;
-        usec_t ts = now(CLOCK_MONOTONIC);
+        usec_t ts;
+        JournalMetrics *m;
+
+        ts = now(CLOCK_MONOTONIC);
 
         if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts)
                 return s->cached_available_space;
@@ -125,10 +116,15 @@ static uint64_t available_space(Server *s) {
         if (r < 0)
                 return 0;
 
-        if (s->system_journal)
+        if (s->system_journal) {
                 f = "/var/log/journal/";
-        else
+                m = &s->system_metrics;
+        } else {
                 f = "/run/log/journal/";
+                m = &s->runtime_metrics;
+        }
+
+        assert(m);
 
         p = strappend(f, sd_id128_to_string(machine, ids));
         if (!p)
@@ -166,11 +162,11 @@ static uint64_t available_space(Server *s) {
                 sum += (uint64_t) st.st_blocks * (uint64_t) st.st_blksize;
         }
 
-        avail = sum >= s->max_use ? 0 : s->max_use - sum;
+        avail = sum >= m->max_use ? 0 : m->max_use - sum;
 
         ss_avail = ss.f_bsize * ss.f_bavail;
 
-        ss_avail = ss_avail < s->metrics.keep_free ? 0 : ss_avail - s->metrics.keep_free;
+        ss_avail = ss_avail < m->keep_free ? 0 : ss_avail - m->keep_free;
 
         if (ss_avail < avail)
                 avail = ss_avail;
@@ -239,8 +235,12 @@ static JournalFile* find_journal(Server *s, uid_t uid) {
 
         assert(s);
 
-        /* We split up user logs only on /var, not on /run */
-        if (!s->system_journal)
+        /* We split up user logs only on /var, not on /run. If the
+         * runtime file is open, we write to it exclusively, in order
+         * to guarantee proper order as soon as we flush /run to
+         * /var and close the runtime file. */
+
+        if (s->runtime_journal)
                 return s->runtime_journal;
 
         if (uid <= 0)
@@ -271,7 +271,7 @@ static JournalFile* find_journal(Server *s, uid_t uid) {
                 return s->system_journal;
 
         fix_perms(f, uid);
-        f->metrics = s->metrics;
+        f->metrics = s->system_metrics;
         f->compress = s->compress;
 
         r = hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f);
@@ -283,14 +283,11 @@ static JournalFile* find_journal(Server *s, uid_t uid) {
         return f;
 }
 
-static void server_vacuum(Server *s) {
-        Iterator i;
+static void server_rotate(Server *s) {
+        JournalFile *f;
         void *k;
-        char *p;
-        char ids[33];
-        sd_id128_t machine;
+        Iterator i;
         int r;
-        JournalFile *f;
 
         log_info("Rotating...");
 
@@ -313,6 +310,13 @@ static void server_vacuum(Server *s) {
                 else
                         hashmap_replace(s->user_journals, k, f);
         }
+}
+
+static void server_vacuum(Server *s) {
+        char *p;
+        char ids[33];
+        sd_id128_t machine;
+        int r;
 
         log_info("Vacuuming...");
 
@@ -322,25 +326,32 @@ static void server_vacuum(Server *s) {
                 return;
         }
 
-        if (asprintf(&p, "/var/log/journal/%s", sd_id128_to_string(machine, ids)) < 0) {
-                log_error("Out of memory.");
-                return;
-        }
+        sd_id128_to_string(machine, ids);
 
-        r = journal_directory_vacuum(p, s->max_use, s->metrics.keep_free);
-        if (r < 0 && r != -ENOENT)
-                log_error("Failed to vacuum %s: %s", p, strerror(-r));
-        free(p);
+        if (s->system_journal) {
+                if (asprintf(&p, "/var/log/journal/%s", ids) < 0) {
+                        log_error("Out of memory.");
+                        return;
+                }
 
-        if (asprintf(&p, "/run/log/journal/%s", ids) < 0) {
-                log_error("Out of memory.");
-                return;
+                r = journal_directory_vacuum(p, s->system_metrics.max_use, s->system_metrics.keep_free);
+                if (r < 0 && r != -ENOENT)
+                        log_error("Failed to vacuum %s: %s", p, strerror(-r));
+                free(p);
         }
 
-        r = journal_directory_vacuum(p, s->max_use, s->metrics.keep_free);
-        if (r < 0 && r != -ENOENT)
-                log_error("Failed to vacuum %s: %s", p, strerror(-r));
-        free(p);
+
+        if (s->runtime_journal) {
+                if (asprintf(&p, "/run/log/journal/%s", ids) < 0) {
+                        log_error("Out of memory.");
+                        return;
+                }
+
+                r = journal_directory_vacuum(p, s->runtime_metrics.max_use, s->runtime_metrics.keep_free);
+                if (r < 0 && r != -ENOENT)
+                        log_error("Failed to vacuum %s: %s", p, strerror(-r));
+                free(p);
+        }
 
         s->cached_available_space_timestamp = 0;
 }
@@ -361,14 +372,27 @@ static char *shortened_cgroup_path(pid_t pid) {
                 return NULL;
         }
 
-        if (streq(init_path, "/"))
+        if (endswith(init_path, "/system"))
+                init_path[strlen(init_path) - 7] = 0;
+        else if (streq(init_path, "/"))
                 init_path[0] = 0;
 
-        if (startswith(process_path, init_path))
-                path = process_path + strlen(init_path);
-        else
+        if (startswith(process_path, init_path)) {
+                char *p;
+
+                p = strdup(process_path + strlen(init_path));
+                if (!p) {
+                        free(process_path);
+                        free(init_path);
+                        return NULL;
+                }
+                path = p;
+        } else {
                 path = process_path;
+                process_path = NULL;
+        }
 
+        free(process_path);
         free(init_path);
 
         return path;
@@ -383,7 +407,8 @@ static void dispatch_message_real(Server *s,
                 *source_time = NULL, *boot_id = NULL, *machine_id = NULL,
                 *comm = NULL, *cmdline = NULL, *hostname = NULL,
                 *audit_session = NULL, *audit_loginuid = NULL,
-                *exe = NULL, *cgroup = NULL;
+                *exe = NULL, *cgroup = NULL, *session = NULL,
+                *owner_uid = NULL, *unit = NULL;
 
         char idbuf[33];
         sd_id128_t id;
@@ -396,11 +421,11 @@ static void dispatch_message_real(Server *s,
         assert(s);
         assert(iovec);
         assert(n > 0);
-        assert(n + 13 <= m);
+        assert(n + N_IOVEC_META_FIELDS <= m);
 
         if (ucred) {
-                uint32_t session;
-                char *path;
+                uint32_t audit;
+                uid_t owner;
 
                 realuid = ucred->uid;
 
@@ -416,30 +441,33 @@ static void dispatch_message_real(Server *s,
                 r = get_process_comm(ucred->pid, &t);
                 if (r >= 0) {
                         comm = strappend("_COMM=", t);
+                        free(t);
+
                         if (comm)
                                 IOVEC_SET_STRING(iovec[n++], comm);
-                        free(t);
                 }
 
                 r = get_process_exe(ucred->pid, &t);
                 if (r >= 0) {
                         exe = strappend("_EXE=", t);
+                        free(t);
+
                         if (comm)
                                 IOVEC_SET_STRING(iovec[n++], exe);
-                        free(t);
                 }
 
                 r = get_process_cmdline(ucred->pid, LINE_MAX, false, &t);
                 if (r >= 0) {
                         cmdline = strappend("_CMDLINE=", t);
+                        free(t);
+
                         if (cmdline)
                                 IOVEC_SET_STRING(iovec[n++], cmdline);
-                        free(t);
                 }
 
-                r = audit_session_from_pid(ucred->pid, &session);
+                r = audit_session_from_pid(ucred->pid, &audit);
                 if (r >= 0)
-                        if (asprintf(&audit_session, "_AUDIT_SESSION=%lu", (unsigned long) session) >= 0)
+                        if (asprintf(&audit_session, "_AUDIT_SESSION=%lu", (unsigned long) audit) >= 0)
                                 IOVEC_SET_STRING(iovec[n++], audit_session);
 
                 r = audit_loginuid_from_pid(ucred->pid, &loginuid);
@@ -447,14 +475,34 @@ static void dispatch_message_real(Server *s,
                         if (asprintf(&audit_loginuid, "_AUDIT_LOGINUID=%lu", (unsigned long) loginuid) >= 0)
                                 IOVEC_SET_STRING(iovec[n++], audit_loginuid);
 
-                path = shortened_cgroup_path(ucred->pid);
-                if (path) {
-                        cgroup = strappend("_SYSTEMD_CGROUP=", path);
+                t = shortened_cgroup_path(ucred->pid);
+                if (t) {
+                        cgroup = strappend("_SYSTEMD_CGROUP=", t);
+                        free(t);
+
                         if (cgroup)
                                 IOVEC_SET_STRING(iovec[n++], cgroup);
+                }
+
+                if (sd_pid_get_session(ucred->pid, &t) >= 0) {
+                        session = strappend("_SYSTEMD_SESSION=", t);
+                        free(t);
+
+                        if (session)
+                                IOVEC_SET_STRING(iovec[n++], session);
+                }
+
+                if (sd_pid_get_unit(ucred->pid, &t) >= 0) {
+                        unit = strappend("_SYSTEMD_UNIT=", t);
+                        free(t);
 
-                        free(path);
+                        if (unit)
+                                IOVEC_SET_STRING(iovec[n++], unit);
                 }
+
+                if (sd_pid_get_owner_uid(ucred->uid, &owner) >= 0)
+                        if (asprintf(&owner_uid, "_SYSTEMD_OWNER_UID=%lu", (unsigned long) owner) >= 0)
+                                IOVEC_SET_STRING(iovec[n++], owner_uid);
         }
 
         if (tv) {
@@ -479,13 +527,15 @@ static void dispatch_message_real(Server *s,
         t = gethostname_malloc();
         if (t) {
                 hostname = strappend("_HOSTNAME=", t);
+                free(t);
                 if (hostname)
                         IOVEC_SET_STRING(iovec[n++], hostname);
-                free(t);
         }
 
         assert(n <= m);
 
+        server_flush_to_var(s);
+
 retry:
         f = find_journal(s, realuid == 0 ? 0 : loginuid);
         if (!f)
@@ -496,6 +546,7 @@ retry:
                 if (r == -E2BIG && !vacuumed) {
                         log_info("Allocation limit reached.");
 
+                        server_rotate(s);
                         server_vacuum(s);
                         vacuumed = true;
 
@@ -520,6 +571,42 @@ retry:
         free(audit_session);
         free(audit_loginuid);
         free(cgroup);
+        free(session);
+        free(owner_uid);
+        free(unit);
+}
+
+static void driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {
+        char mid[11 + 32 + 1];
+        char buffer[16 + LINE_MAX + 1];
+        struct iovec iovec[N_IOVEC_META_FIELDS + 4];
+        int n = 0;
+        va_list ap;
+        struct ucred ucred;
+
+        assert(s);
+        assert(format);
+
+        IOVEC_SET_STRING(iovec[n++], "PRIORITY=5");
+        IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver");
+
+        memcpy(buffer, "MESSAGE=", 8);
+        va_start(ap, format);
+        vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap);
+        va_end(ap);
+        char_array_0(buffer);
+        IOVEC_SET_STRING(iovec[n++], buffer);
+
+        snprintf(mid, sizeof(mid), "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(message_id));
+        char_array_0(mid);
+        IOVEC_SET_STRING(iovec[n++], mid);
+
+        zero(ucred);
+        ucred.pid = getpid();
+        ucred.uid = getuid();
+        ucred.gid = getgid();
+
+        dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL);
 }
 
 static void dispatch_message(Server *s,
@@ -528,7 +615,7 @@ static void dispatch_message(Server *s,
                              struct timeval *tv,
                              int priority) {
         int rl;
-        char *path, *c;
+        char *path = NULL, *c;
 
         assert(s);
         assert(iovec || n == 0);
@@ -559,62 +646,356 @@ static void dispatch_message(Server *s,
                 }
         }
 
-        rl = journal_rate_limit_test(s->rate_limit, path, priority, available_space(s));
+        rl = journal_rate_limit_test(s->rate_limit, path, priority & LOG_PRIMASK, available_space(s));
 
         if (rl == 0) {
                 free(path);
                 return;
         }
 
-        if (rl > 1) {
-                int j = 0;
-                char suppress_message[LINE_MAX];
-                struct iovec suppress_iovec[15];
+        /* Write a suppression message if we suppressed something */
+        if (rl > 1)
+                driver_message(s, SD_MESSAGE_JOURNAL_DROPPED, "Suppressed %u messages from %s", rl - 1, path);
+
+        free(path);
+
+finish:
+        dispatch_message_real(s, iovec, n, m, ucred, tv);
+}
+
+static void forward_syslog_iovec(Server *s, const struct iovec *iovec, unsigned n_iovec, struct ucred *ucred, struct timeval *tv) {
+        struct msghdr msghdr;
+        struct cmsghdr *cmsg;
+        union {
+                struct cmsghdr cmsghdr;
+                uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+        } control;
+        union sockaddr_union sa;
 
-                /* Write a suppression message if we suppressed something */
+        assert(s);
+        assert(iovec);
+        assert(n_iovec > 0);
 
-                snprintf(suppress_message, sizeof(suppress_message), "MESSAGE=Suppressed %u messages from %s", rl - 1, path);
-                char_array_0(suppress_message);
+        zero(msghdr);
+        msghdr.msg_iov = (struct iovec*) iovec;
+        msghdr.msg_iovlen = n_iovec;
 
-                IOVEC_SET_STRING(suppress_iovec[j++], "PRIORITY=5");
-                IOVEC_SET_STRING(suppress_iovec[j++], suppress_message);
+        zero(sa);
+        sa.un.sun_family = AF_UNIX;
+        strncpy(sa.un.sun_path, "/run/systemd/journal/syslog", sizeof(sa.un.sun_path));
+        msghdr.msg_name = &sa;
+        msghdr.msg_namelen = offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path);
 
-                dispatch_message_real(s, suppress_iovec, j, ELEMENTSOF(suppress_iovec), NULL, NULL);
+        if (ucred) {
+                zero(control);
+                msghdr.msg_control = &control;
+                msghdr.msg_controllen = sizeof(control);
+
+                cmsg = CMSG_FIRSTHDR(&msghdr);
+                cmsg->cmsg_level = SOL_SOCKET;
+                cmsg->cmsg_type = SCM_CREDENTIALS;
+                cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred));
+                memcpy(CMSG_DATA(cmsg), ucred, sizeof(struct ucred));
+                msghdr.msg_controllen = cmsg->cmsg_len;
         }
 
-        free(path);
+        /* Forward the syslog message we received via /dev/log to
+         * /run/systemd/syslog. Unfortunately we currently can't set
+         * the SO_TIMESTAMP auxiliary data, and hence we don't. */
+
+        if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0)
+                return;
+
+        if (ucred && errno == ESRCH) {
+                struct ucred u;
+
+                /* Hmm, presumably the sender process vanished
+                 * by now, so let's fix it as good as we
+                 * can, and retry */
+
+                u = *ucred;
+                u.pid = getpid();
+                memcpy(CMSG_DATA(cmsg), &u, sizeof(struct ucred));
+
+                if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0)
+                        return;
+        }
+
+        log_debug("Failed to forward syslog message: %m");
+}
+
+static void forward_syslog_raw(Server *s, const char *buffer, struct ucred *ucred, struct timeval *tv) {
+        struct iovec iovec;
+
+        assert(s);
+        assert(buffer);
+
+        IOVEC_SET_STRING(iovec, buffer);
+        forward_syslog_iovec(s, &iovec, 1, ucred, tv);
+}
+
+static void forward_syslog(Server *s, int priority, const char *identifier, const char *message, struct ucred *ucred, struct timeval *tv) {
+        struct iovec iovec[5];
+        char header_priority[6], header_time[64], header_pid[16];
+        int n = 0;
+        time_t t;
+        struct tm *tm;
+        char *ident_buf = NULL;
+
+        assert(s);
+        assert(priority >= 0);
+        assert(priority <= 999);
+        assert(message);
+
+        /* First: priority field */
+        snprintf(header_priority, sizeof(header_priority), "<%i>", priority);
+        char_array_0(header_priority);
+        IOVEC_SET_STRING(iovec[n++], header_priority);
+
+        /* Second: timestamp */
+        t = tv ? tv->tv_sec : ((time_t) (now(CLOCK_REALTIME) / USEC_PER_SEC));
+        tm = localtime(&t);
+        if (!tm)
+                return;
+        if (strftime(header_time, sizeof(header_time), "%h %e %T ", tm) <= 0)
+                return;
+        IOVEC_SET_STRING(iovec[n++], header_time);
+
+        /* Third: identifier and PID */
+        if (ucred) {
+                if (!identifier) {
+                        get_process_comm(ucred->pid, &ident_buf);
+                        identifier = ident_buf;
+                }
+
+                snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
+                char_array_0(header_pid);
+
+                if (identifier)
+                        IOVEC_SET_STRING(iovec[n++], identifier);
+
+                IOVEC_SET_STRING(iovec[n++], header_pid);
+        } else if (identifier) {
+                IOVEC_SET_STRING(iovec[n++], identifier);
+                IOVEC_SET_STRING(iovec[n++], ": ");
+        }
+
+        /* Fourth: message */
+        IOVEC_SET_STRING(iovec[n++], message);
+
+        forward_syslog_iovec(s, iovec, n, ucred, tv);
+
+        free(ident_buf);
+}
+
+static int fixup_priority(int priority) {
+
+        if ((priority & LOG_FACMASK) == 0)
+                return (priority & LOG_PRIMASK) | LOG_USER;
+
+        return priority;
+}
+
+static void forward_kmsg(Server *s, int priority, const char *identifier, const char *message, struct ucred *ucred) {
+        struct iovec iovec[5];
+        char header_priority[6], header_pid[16];
+        int n = 0;
+        char *ident_buf = NULL;
+        int fd;
+
+        assert(s);
+        assert(priority >= 0);
+        assert(priority <= 999);
+        assert(message);
+
+        /* Never allow messages with kernel facility to be written to
+         * kmsg, regardless where the data comes from. */
+        priority = fixup_priority(priority);
+
+        /* First: priority field */
+        snprintf(header_priority, sizeof(header_priority), "<%i>", priority);
+        char_array_0(header_priority);
+        IOVEC_SET_STRING(iovec[n++], header_priority);
+
+        /* Second: identifier and PID */
+        if (ucred) {
+                if (!identifier) {
+                        get_process_comm(ucred->pid, &ident_buf);
+                        identifier = ident_buf;
+                }
+
+                snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
+                char_array_0(header_pid);
+
+                if (identifier)
+                        IOVEC_SET_STRING(iovec[n++], identifier);
+
+                IOVEC_SET_STRING(iovec[n++], header_pid);
+        } else if (identifier) {
+                IOVEC_SET_STRING(iovec[n++], identifier);
+                IOVEC_SET_STRING(iovec[n++], ": ");
+        }
+
+        /* Fourth: message */
+        IOVEC_SET_STRING(iovec[n++], message);
+        IOVEC_SET_STRING(iovec[n++], "\n");
+
+        fd = open("/dev/kmsg", O_WRONLY|O_NOCTTY|O_CLOEXEC);
+        if (fd < 0) {
+                log_debug("Failed to open /dev/kmsg for logging: %s", strerror(errno));
+                goto finish;
+        }
+
+        if (writev(fd, iovec, n) < 0)
+                log_debug("Failed to write to /dev/kmsg for logging: %s", strerror(errno));
+
+        close_nointr_nofail(fd);
 
 finish:
-        dispatch_message_real(s, iovec, n, m, ucred, tv);
+        free(ident_buf);
+}
+
+static void forward_console(Server *s, const char *identifier, const char *message, struct ucred *ucred) {
+        struct iovec iovec[4];
+        char header_pid[16];
+        int n = 0, fd;
+        char *ident_buf = NULL;
+
+        assert(s);
+        assert(message);
+
+        /* First: identifier and PID */
+        if (ucred) {
+                if (!identifier) {
+                        get_process_comm(ucred->pid, &ident_buf);
+                        identifier = ident_buf;
+                }
+
+                snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
+                char_array_0(header_pid);
+
+                if (identifier)
+                        IOVEC_SET_STRING(iovec[n++], identifier);
+
+                IOVEC_SET_STRING(iovec[n++], header_pid);
+        } else if (identifier) {
+                IOVEC_SET_STRING(iovec[n++], identifier);
+                IOVEC_SET_STRING(iovec[n++], ": ");
+        }
+
+        /* Third: message */
+        IOVEC_SET_STRING(iovec[n++], message);
+        IOVEC_SET_STRING(iovec[n++], "\n");
+
+        fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
+        if (fd < 0) {
+                log_debug("Failed to open /dev/console for logging: %s", strerror(errno));
+                goto finish;
+        }
+
+        if (writev(fd, iovec, n) < 0)
+                log_debug("Failed to write to /dev/console for logging: %s", strerror(errno));
+
+        close_nointr_nofail(fd);
+
+finish:
+        free(ident_buf);
+}
+
+static void read_identifier(const char **buf, char **identifier) {
+        const char *p;
+        char *t;
+        size_t l, e;
+
+        assert(buf);
+        assert(identifier);
+
+        p = *buf;
+
+        p += strspn(p, WHITESPACE);
+        l = strcspn(p, WHITESPACE);
+
+        if (l <= 0 ||
+            p[l-1] != ':')
+                return;
+
+        e = l;
+        l--;
+
+        if (p[l-1] == ']') {
+                size_t k = l-1;
+
+                for (;;) {
+
+                        if (p[k] == '[') {
+                                l = k;
+                                break;
+                        }
+
+                        if (k == 0)
+                                break;
+
+                        k--;
+                }
+        }
+
+        t = strndup(p, l);
+        if (t)
+                *identifier = t;
+
+        *buf = p + e;
+        *buf += strspn(*buf, WHITESPACE);
 }
 
 static void process_syslog_message(Server *s, const char *buf, struct ucred *ucred, struct timeval *tv) {
-        char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL;
-        struct iovec iovec[16];
+        char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL, *syslog_identifier = NULL;
+        struct iovec iovec[N_IOVEC_META_FIELDS + 5];
         unsigned n = 0;
         int priority = LOG_USER | LOG_INFO;
+        char *identifier = NULL;
 
         assert(s);
         assert(buf);
 
+        if (s->forward_to_syslog)
+                forward_syslog_raw(s, buf, ucred, tv);
+
         parse_syslog_priority((char**) &buf, &priority);
         skip_syslog_date((char**) &buf);
+        read_identifier(&buf, &identifier);
+
+        if (s->forward_to_kmsg)
+                forward_kmsg(s, priority, identifier, buf, ucred);
+
+        if (s->forward_to_console)
+                forward_console(s, identifier, buf, ucred);
+
+        IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=syslog");
 
         if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0)
                 IOVEC_SET_STRING(iovec[n++], syslog_priority);
 
-        if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
-                IOVEC_SET_STRING(iovec[n++], syslog_facility);
+        if (priority & LOG_FACMASK)
+                if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
+                        IOVEC_SET_STRING(iovec[n++], syslog_facility);
+
+        if (identifier) {
+                syslog_identifier = strappend("SYSLOG_IDENTIFIER=", identifier);
+                if (syslog_identifier)
+                        IOVEC_SET_STRING(iovec[n++], syslog_identifier);
+        }
 
         message = strappend("MESSAGE=", buf);
         if (message)
                 IOVEC_SET_STRING(iovec[n++], message);
 
-        dispatch_message(s, iovec, n, ELEMENTSOF(iovec), ucred, tv, priority & LOG_PRIMASK);
+        dispatch_message(s, iovec, n, ELEMENTSOF(iovec), ucred, tv, priority);
 
         free(message);
-        free(syslog_facility);
+        free(identifier);
         free(syslog_priority);
+        free(syslog_facility);
+        free(syslog_identifier);
 }
 
 static bool valid_user_field(const char *p, size_t l) {
@@ -654,10 +1035,11 @@ static bool valid_user_field(const char *p, size_t l) {
 
 static void process_native_message(Server *s, const void *buffer, size_t buffer_size, struct ucred *ucred, struct timeval *tv) {
         struct iovec *iovec = NULL;
-        unsigned n = 0, m = 0, j;
+        unsigned n = 0, m = 0, j, tn = (unsigned) -1;
         const char *p;
         size_t remaining;
         int priority = LOG_INFO;
+        char *identifier = NULL, *message = NULL;
 
         assert(s);
         assert(buffer || n == 0);
@@ -697,11 +1079,11 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
 
                 /* A property follows */
 
-                if (n+13 >= m) {
+                if (n+N_IOVEC_META_FIELDS >= m) {
                         struct iovec *c;
                         unsigned u;
 
-                        u = MAX((n+13U) * 2U, 4U);
+                        u = MAX((n+N_IOVEC_META_FIELDS+1) * 2U, 4U);
                         c = realloc(iovec, u * sizeof(struct iovec));
                         if (!c) {
                                 log_error("Out of memory");
@@ -715,22 +1097,56 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
                 q = memchr(p, '=', e - p);
                 if (q) {
                         if (valid_user_field(p, q - p)) {
+                                size_t l;
+
+                                l = e - p;
+
                                 /* If the field name starts with an
                                  * underscore, skip the variable,
                                  * since that indidates a trusted
                                  * field */
                                 iovec[n].iov_base = (char*) p;
-                                iovec[n].iov_len = e - p;
+                                iovec[n].iov_len = l;
                                 n++;
 
                                 /* We need to determine the priority
                                  * of this entry for the rate limiting
                                  * logic */
-                                if (e - p == 10 &&
-                                    memcmp(p, "PRIORITY=", 10) == 0 &&
-                                    p[10] >= '0' &&
-                                    p[10] <= '9')
-                                        priority = p[10] - '0';
+                                if (l == 10 &&
+                                    memcmp(p, "PRIORITY=", 9) == 0 &&
+                                    p[9] >= '0' && p[9] <= '9')
+                                        priority = (priority & LOG_FACMASK) | (p[9] - '0');
+
+                                else if (l == 17 &&
+                                         memcmp(p, "SYSLOG_FACILITY=", 16) == 0 &&
+                                         p[16] >= '0' && p[16] <= '9')
+                                        priority = (priority & LOG_PRIMASK) | ((p[16] - '0') << 3);
+
+                                else if (l == 18 &&
+                                         memcmp(p, "SYSLOG_FACILITY=", 16) == 0 &&
+                                         p[16] >= '0' && p[16] <= '9' &&
+                                         p[17] >= '0' && p[17] <= '9')
+                                        priority = (priority & LOG_PRIMASK) | (((p[16] - '0')*10 + (p[17] - '0')) << 3);
+
+                                else if (l >= 12 &&
+                                         memcmp(p, "SYSLOG_IDENTIFIER=", 11) == 0) {
+                                        char *t;
+
+                                        t = strndup(p + 11, l - 11);
+                                        if (t) {
+                                                free(identifier);
+                                                identifier = t;
+                                        }
+                                } else if (l >= 8 &&
+                                           memcmp(p, "MESSAGE=", 8) == 0) {
+                                        char *t;
+
+                                        t = strndup(p + 8, l - 8);
+                                        if (t) {
+                                                free(message);
+                                                message = t;
+                                        }
+                                }
                         }
 
                         remaining -= (e - p) + 1;
@@ -776,19 +1192,43 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
                 }
         }
 
+        if (n <= 0)
+                goto finish;
+
+        tn = n++;
+        IOVEC_SET_STRING(iovec[tn], "_TRANSPORT=journal");
+
+        if (message) {
+                if (s->forward_to_syslog)
+                        forward_syslog(s, priority, identifier, message, ucred, tv);
+
+                if (s->forward_to_kmsg)
+                        forward_kmsg(s, priority, identifier, message, ucred);
+
+                if (s->forward_to_console)
+                        forward_console(s, identifier, message, ucred);
+        }
+
         dispatch_message(s, iovec, n, m, ucred, tv, priority);
 
-        for (j = 0; j < n; j++)
+finish:
+        for (j = 0; j < n; j++)  {
+                if (j == tn)
+                        continue;
+
                 if (iovec[j].iov_base < buffer ||
                     (const uint8_t*) iovec[j].iov_base >= (const uint8_t*) buffer + buffer_size)
                         free(iovec[j].iov_base);
+        }
+
+        free(identifier);
+        free(message);
 }
 
-static int stdout_stream_log(StdoutStream *s, const char *p, size_t l) {
-        struct iovec iovec[15];
-        char *message = NULL, *syslog_priority = NULL;
+static int stdout_stream_log(StdoutStream *s, const char *p) {
+        struct iovec iovec[N_IOVEC_META_FIELDS + 5];
+        char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL, *syslog_identifier = NULL;
         unsigned n = 0;
-        size_t tag_len;
         int priority;
 
         assert(s);
@@ -796,127 +1236,123 @@ static int stdout_stream_log(StdoutStream *s, const char *p, size_t l) {
 
         priority = s->priority;
 
-        if (s->priority_prefix &&
-            l > 3 &&
-            p[0] == '<' &&
-            p[1] >= '0' && p[1] <= '7' &&
-            p[2] == '>') {
-
-                priority = p[1] - '0';
-                p += 3;
-                l -= 3;
-        }
-
-        if (l <= 0)
-                return 0;
+        if (s->level_prefix)
+                parse_syslog_priority((char**) &p, &priority);
 
-        if (asprintf(&syslog_priority, "PRIORITY=%i", priority) >= 0)
-                IOVEC_SET_STRING(iovec[n++], syslog_priority);
+        if (s->forward_to_syslog || s->server->forward_to_syslog)
+                forward_syslog(s->server, fixup_priority(priority), s->identifier, p, &s->ucred, NULL);
 
-        tag_len = s->tag ? strlen(s->tag) + 2: 0;
-        message = malloc(8 + tag_len + l);
-        if (message) {
-                memcpy(message, "MESSAGE=", 8);
+        if (s->forward_to_kmsg || s->server->forward_to_kmsg)
+                forward_kmsg(s->server, priority, s->identifier, p, &s->ucred);
 
-                if (s->tag) {
-                        memcpy(message+8, s->tag, tag_len-2);
-                        memcpy(message+8+tag_len-2, ": ", 2);
-                }
+        if (s->forward_to_console || s->server->forward_to_console)
+                forward_console(s->server, s->identifier, p, &s->ucred);
 
-                memcpy(message+8+tag_len, p, l);
-                iovec[n].iov_base = message;
-                iovec[n].iov_len = 8+tag_len+l;
-                n++;
-        }
+        IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=stdout");
 
-        dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, priority);
+        if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0)
+                IOVEC_SET_STRING(iovec[n++], syslog_priority);
 
-        if (s->tee_console) {
-                int console;
+        if (priority & LOG_FACMASK)
+                if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
+                        IOVEC_SET_STRING(iovec[n++], syslog_facility);
 
-                console = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
-                if (console >= 0) {
-                        n = 0;
-                        if (s->tag) {
-                                IOVEC_SET_STRING(iovec[n++], s->tag);
-                                IOVEC_SET_STRING(iovec[n++], ": ");
-                        }
-
-                        iovec[n].iov_base = (void*) p;
-                        iovec[n].iov_len = l;
-                        n++;
+        if (s->identifier) {
+                syslog_identifier = strappend("SYSLOG_IDENTIFIER=", s->identifier);
+                if (syslog_identifier)
+                        IOVEC_SET_STRING(iovec[n++], syslog_identifier);
+        }
 
-                        IOVEC_SET_STRING(iovec[n++], (char*) "\n");
+        message = strappend("MESSAGE=", p);
+        if (message)
+                IOVEC_SET_STRING(iovec[n++], message);
 
-                        writev(console, iovec, n);
-                }
-        }
+        dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, priority);
 
         free(message);
         free(syslog_priority);
+        free(syslog_facility);
+        free(syslog_identifier);
 
         return 0;
 }
 
-static int stdout_stream_line(StdoutStream *s, const char *p, size_t l) {
+static int stdout_stream_line(StdoutStream *s, char *p) {
+        int r;
+
         assert(s);
         assert(p);
 
-        while (l > 0 && strchr(WHITESPACE, *p)) {
-                l--;
-                p++;
-        }
-
-        while (l > 0 && strchr(WHITESPACE, *(p+l-1)))
-                l--;
+        p = strstrip(p);
 
         switch (s->state) {
 
-        case STDOUT_STREAM_TAG:
-
-                if (l > 0) {
-                        s->tag = strndup(p, l);
-                        if (!s->tag) {
-                                log_error("Out of memory");
-                                return -EINVAL;
-                        }
+        case STDOUT_STREAM_IDENTIFIER:
+                s->identifier = strdup(p);
+                if (!s->identifier) {
+                        log_error("Out of memory");
+                        return -ENOMEM;
                 }
 
                 s->state = STDOUT_STREAM_PRIORITY;
                 return 0;
 
         case STDOUT_STREAM_PRIORITY:
-                if (l != 1 || *p < '0' || *p > '7') {
+                r = safe_atoi(p, &s->priority);
+                if (r < 0 || s->priority <= 0 || s->priority >= 999) {
                         log_warning("Failed to parse log priority line.");
                         return -EINVAL;
                 }
 
-                s->priority = *p - '0';
-                s->state = STDOUT_STREAM_PRIORITY_PREFIX;
+                s->state = STDOUT_STREAM_LEVEL_PREFIX;
                 return 0;
 
-        case STDOUT_STREAM_PRIORITY_PREFIX:
-                if (l != 1 || *p < '0' || *p > '1') {
-                        log_warning("Failed to parse priority prefix line.");
+        case STDOUT_STREAM_LEVEL_PREFIX:
+                r = parse_boolean(p);
+                if (r < 0) {
+                        log_warning("Failed to parse level prefix line.");
                         return -EINVAL;
                 }
 
-                s->priority_prefix = *p - '0';
-                s->state = STDOUT_STREAM_TEE_CONSOLE;
+                s->level_prefix = !!r;
+                s->state = STDOUT_STREAM_FORWARD_TO_SYSLOG;
                 return 0;
 
-        case STDOUT_STREAM_TEE_CONSOLE:
-                if (l != 1 || *p < '0' || *p > '1') {
-                        log_warning("Failed to parse tee to console line.");
+        case STDOUT_STREAM_FORWARD_TO_SYSLOG:
+                r = parse_boolean(p);
+                if (r < 0) {
+                        log_warning("Failed to parse forward to syslog line.");
+                        return -EINVAL;
+                }
+
+                s->forward_to_syslog = !!r;
+                s->state = STDOUT_STREAM_FORWARD_TO_KMSG;
+                return 0;
+
+        case STDOUT_STREAM_FORWARD_TO_KMSG:
+                r = parse_boolean(p);
+                if (r < 0) {
+                        log_warning("Failed to parse copy to kmsg line.");
                         return -EINVAL;
                 }
 
-                s->tee_console = *p - '0';
+                s->forward_to_kmsg = !!r;
+                s->state = STDOUT_STREAM_FORWARD_TO_CONSOLE;
+                return 0;
+
+        case STDOUT_STREAM_FORWARD_TO_CONSOLE:
+                r = parse_boolean(p);
+                if (r < 0) {
+                        log_warning("Failed to parse copy to console line.");
+                        return -EINVAL;
+                }
+
+                s->forward_to_console = !!r;
                 s->state = STDOUT_STREAM_RUNNING;
                 return 0;
 
         case STDOUT_STREAM_RUNNING:
-                return stdout_stream_log(s, p, l);
+                return stdout_stream_log(s, p);
         }
 
         assert_not_reached("Unknown stream state");
@@ -936,16 +1372,17 @@ static int stdout_stream_scan(StdoutStream *s, bool force_flush) {
                 size_t skip;
 
                 end = memchr(p, '\n', remaining);
-                if (!end) {
-                        if (remaining >= LINE_MAX) {
-                                end = p + LINE_MAX;
-                                skip = LINE_MAX;
-                        } else
-                                break;
-                } else
+                if (end)
                         skip = end - p + 1;
+                else if (remaining >= sizeof(s->buffer) - 1) {
+                        end = p + sizeof(s->buffer) - 1;
+                        skip = sizeof(s->buffer) - 1;
+                } else
+                        break;
 
-                r = stdout_stream_line(s, p, end - p);
+                *end = 0;
+
+                r = stdout_stream_line(s, p);
                 if (r < 0)
                         return r;
 
@@ -954,7 +1391,8 @@ static int stdout_stream_scan(StdoutStream *s, bool force_flush) {
         }
 
         if (force_flush && remaining > 0) {
-                r = stdout_stream_line(s, p, remaining);
+                p[remaining] = 0;
+                r = stdout_stream_line(s, p);
                 if (r < 0)
                         return r;
 
@@ -1019,7 +1457,7 @@ static void stdout_stream_free(StdoutStream *s) {
                 close_nointr_nofail(s->fd);
         }
 
-        free(s->tag);
+        free(s->identifier);
         free(s);
 }
 
@@ -1088,6 +1526,180 @@ fail:
         return r;
 }
 
+static int system_journal_open(Server *s) {
+        int r;
+        char *fn;
+        sd_id128_t machine;
+        char ids[33];
+
+        r = sd_id128_get_machine(&machine);
+        if (r < 0)
+                return r;
+
+        sd_id128_to_string(machine, ids);
+
+        if (!s->system_journal) {
+
+                /* First try to create the machine path, but not the prefix */
+                fn = strappend("/var/log/journal/", ids);
+                if (!fn)
+                        return -ENOMEM;
+                (void) mkdir(fn, 0755);
+                free(fn);
+
+                /* The create the system journal file */
+                fn = join("/var/log/journal/", ids, "/system.journal", NULL);
+                if (!fn)
+                        return -ENOMEM;
+
+                r = journal_file_open(fn, O_RDWR|O_CREAT, 0640, NULL, &s->system_journal);
+                free(fn);
+
+                if (r >= 0) {
+                        journal_default_metrics(&s->system_metrics, s->system_journal->fd);
+
+                        s->system_journal->metrics = s->system_metrics;
+                        s->system_journal->compress = s->compress;
+
+                        fix_perms(s->system_journal, 0);
+                } else if (r < 0) {
+
+                        if (r != -ENOENT && r != -EROFS)
+                                log_warning("Failed to open system journal: %s", strerror(-r));
+
+                        r = 0;
+                }
+        }
+
+        if (!s->runtime_journal) {
+
+                fn = join("/run/log/journal/", ids, "/system.journal", NULL);
+                if (!fn)
+                        return -ENOMEM;
+
+                if (s->system_journal) {
+
+                        /* Try to open the runtime journal, but only
+                         * if it already exists, so that we can flush
+                         * it into the system journal */
+
+                        r = journal_file_open(fn, O_RDWR, 0640, NULL, &s->runtime_journal);
+                        free(fn);
+
+                        if (r < 0) {
+                                if (r != -ENOENT)
+                                        log_warning("Failed to open runtime journal: %s", strerror(-r));
+
+                                r = 0;
+                        }
+
+                } else {
+
+                        /* OK, we really need the runtime journal, so create
+                         * it if necessary. */
+
+                        (void) mkdir_parents(fn, 0755);
+                        r = journal_file_open(fn, O_RDWR|O_CREAT, 0640, NULL, &s->runtime_journal);
+                        free(fn);
+
+                        if (r < 0) {
+                                log_error("Failed to open runtime journal: %s", strerror(-r));
+                                return r;
+                        }
+                }
+
+                if (s->runtime_journal) {
+                        journal_default_metrics(&s->runtime_metrics, s->runtime_journal->fd);
+
+                        s->runtime_journal->metrics = s->runtime_metrics;
+                        s->runtime_journal->compress = s->compress;
+
+                        fix_perms(s->runtime_journal, 0);
+                }
+        }
+
+        return r;
+}
+
+static int server_flush_to_var(Server *s) {
+        char path[] = "/run/log/journal/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
+        Object *o = NULL;
+        int r;
+        sd_id128_t machine;
+        sd_journal *j;
+        usec_t ts;
+
+        assert(s);
+
+        if (!s->runtime_journal)
+                return 0;
+
+        ts = now(CLOCK_MONOTONIC);
+        if (s->var_available_timestamp + RECHECK_VAR_AVAILABLE_USEC > ts)
+                return 0;
+
+        s->var_available_timestamp = ts;
+
+        system_journal_open(s);
+
+        if (!s->system_journal)
+                return 0;
+
+        r = sd_id128_get_machine(&machine);
+        if (r < 0) {
+                log_error("Failed to get machine id: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);
+        if (r < 0) {
+                log_error("Failed to read runtime journal: %s", strerror(-r));
+                return r;
+        }
+
+        SD_JOURNAL_FOREACH(j) {
+                JournalFile *f;
+
+                f = j->current_file;
+                assert(f && f->current_offset > 0);
+
+                r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+                if (r < 0) {
+                        log_error("Can't read entry: %s", strerror(-r));
+                        goto finish;
+                }
+
+                r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
+                if (r == -E2BIG) {
+                        log_info("Allocation limit reached.");
+
+                        journal_file_post_change(s->system_journal);
+                        server_rotate(s);
+                        server_vacuum(s);
+
+                        r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
+                }
+
+                if (r < 0) {
+                        log_error("Can't write entry: %s", strerror(-r));
+                        goto finish;
+                }
+        }
+
+finish:
+        journal_file_post_change(s->system_journal);
+
+        journal_file_close(s->runtime_journal);
+        s->runtime_journal = NULL;
+
+        if (r >= 0) {
+                sd_id128_to_string(machine, path + 17);
+                rm_rf(path, false, true, false);
+        }
+
+        return r;
+}
+
 static int process_event(Server *s, struct epoll_event *ev) {
         assert(s);
 
@@ -1112,6 +1724,11 @@ static int process_event(Server *s, struct epoll_event *ev) {
                         return -errno;
                 }
 
+                if (sfsi.ssi_signo == SIGUSR1) {
+                        server_flush_to_var(s);
+                        return 0;
+                }
+
                 log_debug("Received SIG%s", signal_to_string(sfsi.ssi_signo));
                 return 0;
 
@@ -1247,70 +1864,11 @@ static int process_event(Server *s, struct epoll_event *ev) {
         return 0;
 }
 
-static int system_journal_open(Server *s) {
-        int r;
-        char *fn;
-        sd_id128_t machine;
-        char ids[33];
-
-        r = sd_id128_get_machine(&machine);
-        if (r < 0)
-                return r;
-
-        /* First try to create the machine path, but not the prefix */
-        fn = strappend("/var/log/journal/", sd_id128_to_string(machine, ids));
-        if (!fn)
-                return -ENOMEM;
-        (void) mkdir(fn, 0755);
-        free(fn);
-
-        /* The create the system journal file */
-        fn = join("/var/log/journal/", ids, "/system.journal", NULL);
-        if (!fn)
-                return -ENOMEM;
-
-        r = journal_file_open(fn, O_RDWR|O_CREAT, 0640, NULL, &s->system_journal);
-        free(fn);
-
-        if (r >= 0) {
-                s->system_journal->metrics = s->metrics;
-                s->system_journal->compress = s->compress;
-
-                fix_perms(s->system_journal, 0);
-                return r;
-        }
-
-        if (r < 0 && r != -ENOENT) {
-                log_error("Failed to open system journal: %s", strerror(-r));
-                return r;
-        }
-
-        /* /var didn't work, so try /run, but this time we
-         * create the prefix too */
-        fn = join("/run/log/journal/", ids, "/system.journal", NULL);
-        if (!fn)
-                return -ENOMEM;
-
-        (void) mkdir_parents(fn, 0755);
-        r = journal_file_open(fn, O_RDWR|O_CREAT, 0640, NULL, &s->runtime_journal);
-        free(fn);
-
-        if (r < 0) {
-                log_error("Failed to open runtime journal: %s", strerror(-r));
-                return r;
-        }
-
-        s->runtime_journal->metrics = s->metrics;
-        s->runtime_journal->compress = s->compress;
-
-        fix_perms(s->runtime_journal, 0);
-        return r;
-}
-
 static int open_syslog_socket(Server *s) {
         union sockaddr_union sa;
         int one, r;
         struct epoll_event ev;
+        struct timeval tv;
 
         assert(s);
 
@@ -1324,7 +1882,7 @@ static int open_syslog_socket(Server *s) {
 
                 zero(sa);
                 sa.un.sun_family = AF_UNIX;
-                strncpy(sa.un.sun_path, "/run/systemd/syslog", sizeof(sa.un.sun_path));
+                strncpy(sa.un.sun_path, "/dev/log", sizeof(sa.un.sun_path));
 
                 unlink(sa.un.sun_path);
 
@@ -1351,6 +1909,15 @@ static int open_syslog_socket(Server *s) {
                 return -errno;
         }
 
+        /* Since we use the same socket for forwarding this to some
+         * other syslog implementation, make sure we don't hang
+         * forever */
+        timeval_store(&tv, SYSLOG_TIMEOUT_USEC);
+        if (setsockopt(s->syslog_fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)) < 0) {
+                log_error("SO_SNDTIMEO failed: %m");
+                return -errno;
+        }
+
         zero(ev);
         ev.events = EPOLLIN;
         ev.data.fd = s->syslog_fd;
@@ -1379,7 +1946,7 @@ static int open_native_socket(Server*s) {
 
                 zero(sa);
                 sa.un.sun_family = AF_UNIX;
-                strncpy(sa.un.sun_path, "/run/systemd/journal", sizeof(sa.un.sun_path));
+                strncpy(sa.un.sun_path, "/run/systemd/journal/socket", sizeof(sa.un.sun_path));
 
                 unlink(sa.un.sun_path);
 
@@ -1434,7 +2001,7 @@ static int open_stdout_socket(Server *s) {
 
                 zero(sa);
                 sa.un.sun_family = AF_UNIX;
-                strncpy(sa.un.sun_path, "/run/systemd/stdout", sizeof(sa.un.sun_path));
+                strncpy(sa.un.sun_path, "/run/systemd/journal/stdout", sizeof(sa.un.sun_path));
 
                 unlink(sa.un.sun_path);
 
@@ -1470,7 +2037,7 @@ static int open_signalfd(Server *s) {
         assert(s);
 
         assert_se(sigemptyset(&mask) == 0);
-        sigset_add_many(&mask, SIGINT, SIGTERM, -1);
+        sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, -1);
         assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
 
         s->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
@@ -1491,6 +2058,85 @@ static int open_signalfd(Server *s) {
         return 0;
 }
 
+static int server_parse_proc_cmdline(Server *s) {
+        char *line, *w, *state;
+        int r;
+        size_t l;
+
+        if (detect_container(NULL) > 0)
+                return 0;
+
+        r = read_one_line_file("/proc/cmdline", &line);
+        if (r < 0) {
+                log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
+                return 0;
+        }
+
+        FOREACH_WORD_QUOTED(w, l, line, state) {
+                char *word;
+
+                word = strndup(w, l);
+                if (!word) {
+                        r = -ENOMEM;
+                        goto finish;
+                }
+
+                if (startswith(word, "systemd_journald.forward_to_syslog=")) {
+                        r = parse_boolean(word + 35);
+                        if (r < 0)
+                                log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35);
+                        else
+                                s->forward_to_syslog = r;
+                } else if (startswith(word, "systemd_journald.forward_to_kmsg=")) {
+                        r = parse_boolean(word + 33);
+                        if (r < 0)
+                                log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33);
+                        else
+                                s->forward_to_kmsg = r;
+                } else if (startswith(word, "systemd_journald.forward_to_console=")) {
+                        r = parse_boolean(word + 36);
+                        if (r < 0)
+                                log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);
+                        else
+                                s->forward_to_console = r;
+                }
+
+                free(word);
+        }
+
+        r = 0;
+
+finish:
+        free(line);
+        return r;
+}
+
+static int server_parse_config_file(Server *s) {
+        FILE *f;
+        const char *fn;
+        int r;
+
+        assert(s);
+
+        fn = "/etc/systemd/systemd-journald.conf";
+        f = fopen(fn, "re");
+        if (!f) {
+                if (errno == ENOENT)
+                        return 0;
+
+                log_warning("Failed to open configuration file %s: %m", fn);
+                return -errno;
+        }
+
+        r = config_parse(fn, f, "Journal\0", config_item_perf_lookup, (void*) journald_gperf_lookup, false, s);
+        if (r < 0)
+                log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+        fclose(f);
+
+        return r;
+}
+
 static int server_init(Server *s) {
         int n, r, fd;
 
@@ -1498,12 +2144,19 @@ static int server_init(Server *s) {
 
         zero(*s);
         s->syslog_fd = s->native_fd = s->stdout_fd = s->signal_fd = s->epoll_fd = -1;
-        s->metrics.max_size = DEFAULT_MAX_SIZE;
-        s->metrics.min_size = DEFAULT_MIN_SIZE;
-        s->metrics.keep_free = DEFAULT_KEEP_FREE;
-        s->max_use = DEFAULT_MAX_USE;
         s->compress = true;
 
+        s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL;
+        s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
+
+        s->forward_to_syslog = true;
+
+        memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics));
+        memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics));
+
+        server_parse_config_file(s);
+        server_parse_proc_cmdline(s);
+
         s->user_journals = hashmap_new(trivial_hash_func, trivial_compare_func);
         if (!s->user_journals) {
                 log_error("Out of memory.");
@@ -1524,7 +2177,7 @@ static int server_init(Server *s) {
 
         for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
 
-                if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/native", 0) > 0) {
+                if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) {
 
                         if (s->native_fd >= 0) {
                                 log_error("Too many native sockets passed.");
@@ -1533,7 +2186,7 @@ static int server_init(Server *s) {
 
                         s->native_fd = fd;
 
-                } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/stdout", 0) > 0) {
+                } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) {
 
                         if (s->stdout_fd >= 0) {
                                 log_error("Too many stdout sockets passed.");
@@ -1577,7 +2230,7 @@ static int server_init(Server *s) {
         if (r < 0)
                 return r;
 
-        s->rate_limit = journal_rate_limit_new(DEFAULT_RATE_LIMIT_INTERVAL, DEFAULT_RATE_LIMIT_BURST);
+        s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst);
         if (!s->rate_limit)
                 return -ENOMEM;
 
@@ -1619,6 +2272,8 @@ static void server_done(Server *s) {
 
         if (s->rate_limit)
                 journal_rate_limit_free(s->rate_limit);
+
+        free(s->buffer);
 }
 
 int main(int argc, char *argv[]) {
@@ -1636,7 +2291,6 @@ int main(int argc, char *argv[]) {
         }
 
         log_set_target(LOG_TARGET_CONSOLE);
-        log_set_max_level(LOG_DEBUG);
         log_parse_environment();
         log_open();
 
@@ -1646,7 +2300,11 @@ int main(int argc, char *argv[]) {
         if (r < 0)
                 goto finish;
 
+        server_vacuum(&server);
+        server_flush_to_var(&server);
+
         log_debug("systemd-journald running as pid %lu", (unsigned long) getpid());
+        driver_message(&server, SD_MESSAGE_JOURNAL_START, "Journal started");
 
         sd_notify(false,
                   "READY=1\n"
@@ -1675,6 +2333,7 @@ int main(int argc, char *argv[]) {
         }
 
         log_debug("systemd-journald stopped as pid %lu", (unsigned long) getpid());
+        driver_message(&server, SD_MESSAGE_JOURNAL_STOP, "Journal stopped");
 
 finish:
         sd_notify(false,