#include <assert.h>
#include <errno.h>
#include <string.h>
-#include <sys/epoll.h>
#include <signal.h>
-#include <sys/signalfd.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/poll.h>
#include "dbus-unit.h"
#include "dbus-job.h"
#include "dbus-manager.h"
+#include "bus-kernel.h"
/* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */
#define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC)
/* Initial delay and the interval for printing status messages about running jobs */
-#define JOBS_IN_PROGRESS_WAIT_SEC 5
-#define JOBS_IN_PROGRESS_PERIOD_SEC 1
+#define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC)
+#define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3)
#define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3
/* Where clients shall send notification messages to */
static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata);
static int manager_dispatch_run_queue(sd_event_source *source, void *userdata);
-static int manager_setup_notify(Manager *m) {
- union {
- struct sockaddr sa;
- struct sockaddr_un un;
- } sa = {
- .sa.sa_family = AF_UNIX,
- };
- int one = 1, r;
-
- m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
- if (m->notify_fd < 0) {
- log_error("Failed to allocate notification socket: %m");
- return -errno;
- }
-
- if (getpid() != 1 || detect_container(NULL) > 0)
- snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull());
- else
- strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path));
- sa.un.sun_path[0] = 0;
-
- r = bind(m->notify_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1));
- if (r < 0) {
- log_error("bind() failed: %m");
- return -errno;
- }
-
- r = setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
- if (r < 0) {
- log_error("SO_PASSCRED failed: %m");
- return -errno;
- }
-
- r = sd_event_add_io(m->event, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m, &m->notify_event_source);
- if (r < 0) {
- log_error("Failed to allocate notify event source: %s", strerror(-r));
- return -errno;
- }
-
- sa.un.sun_path[0] = '@';
- m->notify_socket = strdup(sa.un.sun_path);
- if (!m->notify_socket)
- return log_oom();
-
- log_debug("Using notification socket %s", m->notify_socket);
-
- return 0;
-}
-
static int manager_watch_jobs_in_progress(Manager *m) {
+ usec_t next;
+
assert(m);
if (m->jobs_in_progress_event_source)
return 0;
- return sd_event_add_monotonic(m->event, JOBS_IN_PROGRESS_WAIT_SEC, 0, manager_dispatch_jobs_in_progress, m, &m->jobs_in_progress_event_source);
+ next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC;
+ return sd_event_add_monotonic(m->event, &m->jobs_in_progress_event_source, next, 0, manager_dispatch_jobs_in_progress, m);
}
#define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1))
}
}
+void manager_flip_auto_status(Manager *m, bool enable) {
+ assert(m);
+
+ if (enable) {
+ if (m->show_status == SHOW_STATUS_AUTO)
+ manager_set_show_status(m, SHOW_STATUS_TEMPORARY);
+ } else {
+ if (m->show_status == SHOW_STATUS_TEMPORARY)
+ manager_set_show_status(m, SHOW_STATUS_AUTO);
+ }
+}
+
static void manager_print_jobs_in_progress(Manager *m) {
_cleanup_free_ char *job_of_n = NULL;
Iterator i;
unsigned counter = 0, print_nr;
char cylon[6 + CYLON_BUFFER_EXTRA + 1];
unsigned cylon_pos;
+ char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit";
+ uint64_t x;
assert(m);
+ manager_flip_auto_status(m, true);
+
print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs;
HASHMAP_FOREACH(j, m->jobs, i)
cylon_pos = 14 - cylon_pos;
draw_cylon(cylon, sizeof(cylon), 6, cylon_pos);
+ m->jobs_in_progress_iteration++;
+
if (m->n_running_jobs > 1)
if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0)
job_of_n = NULL;
- manager_status_printf(m, true, cylon, "%sA %s job is running for %s",
- strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit));
+ format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC);
+ if (job_get_timeout(j, &x) > 0)
+ format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC);
+
+ manager_status_printf(m, true, cylon,
+ "%sA %s job is running for %s (%s / %s)",
+ strempty(job_of_n),
+ job_type_to_string(j->type),
+ unit_description(j->unit),
+ time, limit);
- m->jobs_in_progress_iteration++;
}
static int manager_watch_idle_pipe(Manager *m) {
if (m->idle_pipe[2] < 0)
return 0;
- r = sd_event_add_io(m->event, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m, &m->idle_pipe_event_source);
+ r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m);
if (r < 0) {
log_error("Failed to watch idle pipe: %s", strerror(-r));
return r;
return 0;
}
- r = sd_event_add_io(m->event, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m, &m->time_change_event_source);
+ r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m);
if (r < 0) {
log_error("Failed to create time change event source: %s", strerror(-r));
return r;
} else {
/* Enable that we get SIGWINCH on kbrequest */
if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
- log_warning("Failed to enable kbrequest handling: %s", strerror(errno));
+ log_warning("Failed to enable kbrequest handling: %m");
}
return 0;
if (m->signal_fd < 0)
return -errno;
- r = sd_event_add_io(m->event, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m, &m->signal_event_source);
+ r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m);
if (r < 0)
return r;
- /* Process signals a bit earlier than the rest of things */
+ /* Process signals a bit earlier than the rest of things, but
+ * later that notify_fd processing, so that the notify
+ * processing can still figure out to which process/service a
+ * message belongs, before we reap the process. */
r = sd_event_source_set_priority(m->signal_event_source, -5);
if (r < 0)
return r;
return 0;
}
+static void manager_clean_environment(Manager *m) {
+ assert(m);
+
+ /* Let's remove some environment variables that we
+ * need ourselves to communicate with our clients */
+ strv_env_unset_many(
+ m->environment,
+ "NOTIFY_SOCKET",
+ "MAINPID",
+ "MANAGERPID",
+ "LISTEN_PID",
+ "LISTEN_FDS",
+ "WATCHDOG_PID",
+ "WATCHDOG_USEC",
+ NULL);
+}
+
static int manager_default_environment(Manager *m) {
assert(m);
/* Import locale variables LC_*= from configuration */
locale_setup(&m->environment);
- } else
+ } else {
/* The user manager passes its own environment
* along to its children. */
m->environment = strv_copy(environ);
+ }
if (!m->environment)
return -ENOMEM;
+ manager_clean_environment(m);
strv_sort(m->environment);
return 0;
}
-int manager_new(SystemdRunningAs running_as, bool reexecuting, Manager **_m) {
+int manager_new(SystemdRunningAs running_as, Manager **_m) {
Manager *m;
- int r = -ENOMEM;
- bool try_bus_connect = false;
+ int r;
assert(_m);
assert(running_as >= 0);
m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
- m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = -1;
+ m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = -1;
m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
r = manager_default_environment(m);
if (r < 0)
goto fail;
- r = hashmap_ensure_allocated(&m->watch_pids, trivial_hash_func, trivial_compare_func);
+ r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func);
if (r < 0)
goto fail;
- r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func);
+ r = set_ensure_allocated(&m->failed_units, trivial_hash_func, trivial_compare_func);
if (r < 0)
goto fail;
if (r < 0)
goto fail;
- r = sd_event_add_defer(m->event, manager_dispatch_run_queue, m, &m->run_queue_event_source);
+ r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m);
if (r < 0)
goto fail;
if (r < 0)
goto fail;
- r = manager_setup_notify(m);
- if (r < 0)
- goto fail;
-
r = manager_setup_time_change(m);
if (r < 0)
goto fail;
- if (running_as == SYSTEMD_SYSTEM)
- try_bus_connect = reexecuting;
- else if (getenv("DBUS_SESSION_BUS_ADDRESS"))
- try_bus_connect = true;
- else
- log_debug("Skipping DBus session bus connection attempt - no DBUS_SESSION_BUS_ADDRESS set...");
-
- /* Try to connect to the busses, if possible. */
- r = bus_init(m, try_bus_connect);
- if (r < 0)
+ m->udev = udev_new();
+ if (!m->udev) {
+ r = -ENOMEM;
goto fail;
+ }
+
+ /* Note that we set up neither kdbus, nor the notify fd
+ * here. We do that after deserialization, since they might
+ * have gotten serialized across the reexec. */
m->taint_usr = dir_is_empty("/usr") > 0;
return r;
}
+static int manager_setup_notify(Manager *m) {
+ union {
+ struct sockaddr sa;
+ struct sockaddr_un un;
+ } sa = {
+ .sa.sa_family = AF_UNIX,
+ };
+ int one = 1, r;
+
+ if (m->notify_fd < 0) {
+ _cleanup_close_ int fd = -1;
+
+ /* First free all secondary fields */
+ free(m->notify_socket);
+ m->notify_socket = NULL;
+ m->notify_event_source = sd_event_source_unref(m->notify_event_source);
+
+ fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
+ if (fd < 0) {
+ log_error("Failed to allocate notification socket: %m");
+ return -errno;
+ }
+
+ if (getpid() != 1 || detect_container(NULL) > 0)
+ snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%" PRIx64, random_u64());
+ else
+ strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path));
+ sa.un.sun_path[0] = 0;
+
+ r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1));
+ if (r < 0) {
+ log_error("bind() failed: %m");
+ return -errno;
+ }
+
+ r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
+ if (r < 0) {
+ log_error("SO_PASSCRED failed: %m");
+ return -errno;
+ }
+
+ sa.un.sun_path[0] = '@';
+ m->notify_socket = strdup(sa.un.sun_path);
+ if (!m->notify_socket)
+ return log_oom();
+
+ m->notify_fd = fd;
+ fd = -1;
+
+ log_debug("Using notification socket %s", m->notify_socket);
+ }
+
+ if (!m->notify_event_source) {
+ r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m);
+ if (r < 0) {
+ log_error("Failed to allocate notify event source: %s", strerror(-r));
+ return -errno;
+ }
+
+ /* Process signals a bit earlier than SIGCHLD, so that we can
+ * still identify to which service an exit message belongs */
+ r = sd_event_source_set_priority(m->notify_event_source, -7);
+ if (r < 0) {
+ log_error("Failed to set priority of notify event source: %s", strerror(-r));
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int manager_setup_kdbus(Manager *m) {
+#ifdef ENABLE_KDBUS
+ _cleanup_free_ char *p = NULL;
+#endif
+
+#ifdef ENABLE_KDBUS
+ assert(m);
+
+ if (m->kdbus_fd >= 0)
+ return 0;
+
+ m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p);
+ if (m->kdbus_fd < 0) {
+ log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd));
+ return m->kdbus_fd;
+ }
+
+ log_debug("Successfully set up kdbus on %s", p);
+
+ /* Create the namespace directory here, so that the contents
+ * of that directory is not visible to non-root users. This is
+ * necessary to ensure that users cannot get access to busses
+ * of virtualized users when no UID namespacing is used. */
+ if (m->running_as == SYSTEMD_SYSTEM)
+ mkdir_p_label("/dev/kdbus/domain", 0700);
+#endif
+
+ return 0;
+}
+
+static int manager_connect_bus(Manager *m, bool reexecuting) {
+ bool try_bus_connect;
+
+ assert(m);
+
+ try_bus_connect =
+ m->kdbus_fd >= 0 ||
+ reexecuting ||
+ (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"));
+
+ /* Try to connect to the busses, if possible. */
+ return bus_init(m, try_bus_connect);
+}
+
static unsigned manager_dispatch_cleanup_queue(Manager *m) {
Unit *u;
unsigned n = 0;
hashmap_free(m->units);
hashmap_free(m->jobs);
- hashmap_free(m->watch_pids);
+ hashmap_free(m->watch_pids1);
+ hashmap_free(m->watch_pids2);
hashmap_free(m->watch_bus);
+ set_free(m->failed_units);
+
sd_event_source_unref(m->signal_event_source);
sd_event_source_unref(m->notify_event_source);
sd_event_source_unref(m->time_change_event_source);
close_nointr_nofail(m->notify_fd);
if (m->time_change_fd >= 0)
close_nointr_nofail(m->time_change_fd);
+ if (m->kdbus_fd >= 0)
+ close_nointr_nofail(m->kdbus_fd);
manager_close_idle_pipe(m);
+ udev_unref(m->udev);
sd_event_unref(m->event);
free(m->notify_socket);
free(m->switch_root);
free(m->switch_root_init);
- for (i = 0; i < RLIMIT_NLIMITS; i++)
+ for (i = 0; i < _RLIMIT_MAX; i++)
free(m->rlimit[i]);
assert(hashmap_isempty(m->units_requiring_mounts_for));
}
static int manager_coldplug(Manager *m) {
- int r = 0, q;
+ int r = 0;
Iterator i;
Unit *u;
char *k;
/* Then, let's set up their initial state. */
HASHMAP_FOREACH_KEY(u, k, m->units, i) {
+ int q;
/* ignore aliases */
if (u->id != k)
continue;
- if ((q = unit_coldplug(u)) < 0)
+ q = unit_coldplug(u);
+ if (q < 0)
r = q;
}
r = q;
}
+ /* We might have deserialized the notify fd, but if we didn't
+ * then let's create the bus now */
+ manager_setup_notify(m);
+
+ /* We might have deserialized the kdbus control fd, but if we
+ * didn't, then let's create the bus now. */
+ manager_setup_kdbus(m);
+ manager_connect_bus(m, !!serialization);
+ bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed);
+
/* Third, fire things up! */
q = manager_coldplug(m);
if (q < 0)
return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
if (!name)
- name = path_get_file_name(path);
+ name = basename(path);
t = unit_name_to_type(name);
- if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false))
+ if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID))
return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
ret = manager_get_unit(m, name);
return n;
}
+static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) {
+ _cleanup_strv_free_ char **tags = NULL;
+
+ assert(m);
+ assert(u);
+ assert(buf);
+ assert(n > 0);
+
+ tags = strv_split(buf, "\n\r");
+ if (!tags) {
+ log_oom();
+ return;
+ }
+
+ log_debug_unit(u->id, "Got notification message for unit %s", u->id);
+
+ if (UNIT_VTABLE(u)->notify_message)
+ UNIT_VTABLE(u)->notify_message(u, pid, tags);
+}
+
static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
Manager *m = userdata;
ssize_t n;
.iov_base = buf,
.iov_len = sizeof(buf)-1,
};
+ bool found = false;
union {
struct cmsghdr cmsghdr;
};
struct ucred *ucred;
Unit *u;
- _cleanup_strv_free_ char **tags = NULL;
n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT);
if (n <= 0) {
ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
- u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid));
- if (!u) {
- u = manager_get_unit_by_pid(m, ucred->pid);
- if (!u) {
- log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid);
- continue;
- }
- }
-
assert((size_t) n < sizeof(buf));
buf[n] = 0;
- tags = strv_split(buf, "\n\r");
- if (!tags)
- return log_oom();
- log_debug_unit(u->id, "Got notification message for unit %s", u->id);
+ u = manager_get_unit_by_pid(m, ucred->pid);
+ if (u) {
+ manager_invoke_notify_message(m, u, ucred->pid, buf, n);
+ found = true;
+ }
+
+ u = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
+ if (u) {
+ manager_invoke_notify_message(m, u, ucred->pid, buf, n);
+ found = true;
+ }
+
+ u = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
+ if (u) {
+ manager_invoke_notify_message(m, u, ucred->pid, buf, n);
+ found = true;
+ }
- if (UNIT_VTABLE(u)->notify_message)
- UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags);
+ if (!found)
+ log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
}
return 0;
}
+static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) {
+ assert(m);
+ assert(u);
+ assert(si);
+
+ log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
+
+ unit_unwatch_pid(u, si->si_pid);
+ UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
+}
+
static int manager_dispatch_sigchld(Manager *m) {
assert(m);
for (;;) {
siginfo_t si = {};
- Unit *u;
- int r;
/* First we call waitd() for a PID and do not reap the
* zombie. That way we can still access /proc/$PID for
if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {
_cleanup_free_ char *name = NULL;
+ Unit *u;
get_process_comm(si.si_pid, &name);
- log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name));
- }
- /* Let's flush any message the dying child might still
- * have queued for us. This ensures that the process
- * still exists in /proc so that we can figure out
- * which cgroup and hence unit it belongs to. */
- r = manager_dispatch_notify_fd(m->notify_event_source, m->notify_fd, EPOLLIN, m);
- if (r < 0)
- return r;
+ log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)",
+ si.si_pid, strna(name),
+ sigchld_code_to_string(si.si_code),
+ si.si_status,
+ strna(si.si_code == CLD_EXITED
+ ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
+ : signal_to_string(si.si_status)));
- /* And now figure out the unit this belongs to */
- u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid));
- if (!u)
+ /* And now figure out the unit this belongs
+ * to, it might be multiple... */
u = manager_get_unit_by_pid(m, si.si_pid);
+ if (u)
+ invoke_sigchld_event(m, u, &si);
+ u = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid));
+ if (u)
+ invoke_sigchld_event(m, u, &si);
+ u = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid));
+ if (u)
+ invoke_sigchld_event(m, u, &si);
+ }
/* And now, we actually reap the zombie. */
if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {
return -errno;
}
-
- if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED)
- continue;
-
- log_debug("Child %lu died (code=%s, status=%i/%s)",
- (long unsigned) si.si_pid,
- sigchld_code_to_string(si.si_code),
- si.si_status,
- strna(si.si_code == CLD_EXITED
- ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
- : signal_to_string(si.si_status)));
-
- if (!u)
- continue;
-
- log_debug_unit(u->id,
- "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id);
-
- hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid));
- UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status);
}
return 0;
return -errno;
}
- if (sfsi.ssi_pid > 0) {
- char *p = NULL;
-
- get_process_comm(sfsi.ssi_pid, &p);
-
- log_debug("Received SIG%s from PID %lu (%s).",
- signal_to_string(sfsi.ssi_signo),
- (unsigned long) sfsi.ssi_pid, strna(p));
- free(p);
- } else
- log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo));
+ log_received_signal(sfsi.ssi_signo == SIGCHLD ||
+ (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER)
+ ? LOG_DEBUG : LOG_INFO,
+ &sfsi);
switch (sfsi.ssi_signo) {
break;
}
+ if (fflush(f)) {
+ log_warning("Failed to flush status stream");
+ break;
+ }
+
log_dump(LOG_INFO, dump);
break;
}
case 20:
log_debug("Enabling showing of status.");
- manager_set_show_status(m, true);
+ manager_set_show_status(m, SHOW_STATUS_YES);
break;
case 21:
log_debug("Disabling showing of status.");
- manager_set_show_status(m, false);
+ manager_set_show_status(m, SHOW_STATUS_NO);
break;
case 22:
}
if (sigchld)
- return manager_dispatch_sigchld(m);
+ manager_dispatch_sigchld(m);
return 0;
}
static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
Manager *m = userdata;
+ int r;
+ uint64_t next;
assert(m);
+ assert(source);
manager_print_jobs_in_progress(m);
- return 0;
+
+ next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
+ r = sd_event_source_set_time(source, next);
+ if (r < 0)
+ return r;
+
+ return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
}
int manager_loop(Manager *m) {
RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000);
assert(m);
- m->exit_code = MANAGER_RUNNING;
+ m->exit_code = MANAGER_OK;
/* Release the path cache */
set_free_free(m->unit_path_cache);
if (r < 0)
return r;
- while (m->exit_code == MANAGER_RUNNING) {
+ while (m->exit_code == MANAGER_OK) {
usec_t wait_usec;
if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM)
void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
#ifdef HAVE_AUDIT
- char *p;
+ _cleanup_free_ char *p = NULL;
int audit_fd;
audit_fd = get_audit_fd();
} else
log_warning("Failed to send audit message: %m");
}
-
- free(p);
#endif
}
void manager_send_unit_plymouth(Manager *m, Unit *u) {
- int fd = -1;
- union sockaddr_union sa;
+ union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "\0/org/freedesktop/plymouthd",
+ };
+
int n = 0;
- char *message = NULL;
+ _cleanup_free_ char *message = NULL;
+ _cleanup_close_ int fd = -1;
/* Don't generate plymouth events if the service was already
* started and we're just deserializing */
return;
}
- zero(sa);
- sa.sa.sa_family = AF_UNIX;
- strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1);
if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
- if (errno != EPIPE &&
- errno != EAGAIN &&
- errno != ENOENT &&
- errno != ECONNREFUSED &&
- errno != ECONNRESET &&
- errno != ECONNABORTED)
+ if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
log_error("connect() failed: %m");
-
- goto finish;
+ return;
}
if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
log_oom();
- goto finish;
+ return;
}
errno = 0;
- if (write(fd, message, n + 1) != n + 1) {
-
- if (errno != EPIPE &&
- errno != EAGAIN &&
- errno != ENOENT &&
- errno != ECONNREFUSED &&
- errno != ECONNRESET &&
- errno != ECONNABORTED)
+ if (write(fd, message, n + 1) != n + 1)
+ if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
log_error("Failed to write Plymouth message: %m");
-
- goto finish;
- }
-
-finish:
- if (fd >= 0)
- close_nointr_nofail(fd);
-
- free(message);
}
void manager_dispatch_bus_name_owner_changed(
}
int manager_open_serialization(Manager *m, FILE **_f) {
- char *path = NULL;
+ const char *path;
int fd = -1;
FILE *f;
assert(_f);
- if (m->running_as == SYSTEMD_SYSTEM)
- asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid());
- else
- asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid());
-
- if (!path)
- return -ENOMEM;
-
- RUN_WITH_UMASK(0077) {
- fd = mkostemp(path, O_RDWR|O_CLOEXEC);
- }
-
- if (fd < 0) {
- free(path);
+ path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
+ fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
+ if (fd < 0)
return -errno;
- }
-
- unlink(path);
log_debug("Serializing state to %s", path);
- free(path);
f = fdopen(fd, "w+");
- if (!f)
+ if (!f) {
+ close_nointr_nofail(fd);
return -errno;
+ }
*_f = f;
_cleanup_free_ char *ce;
ce = cescape(*e);
- if (ce)
- fprintf(f, "env=%s\n", *e);
+ if (!ce)
+ return -ENOMEM;
+
+ fprintf(f, "env=%s\n", *e);
}
}
- bus_serialize(m, f);
+ if (m->notify_fd >= 0) {
+ int copy;
+
+ copy = fdset_put_dup(fds, m->notify_fd);
+ if (copy < 0)
+ return copy;
+
+ fprintf(f, "notify-fd=%i\n", copy);
+ fprintf(f, "notify-socket=%s\n", m->notify_socket);
+ }
+
+ if (m->kdbus_fd >= 0) {
+ int copy;
+
+ copy = fdset_put_dup(fds, m->kdbus_fd);
+ if (copy < 0)
+ return copy;
+
+ fprintf(f, "kdbus-fd=%i\n", copy);
+ }
+
+ bus_track_serialize(m->subscribed, f);
fputc('\n', f);
} else if (startswith(l, "taint-usr=")) {
int b;
- if ((b = parse_boolean(l+10)) < 0)
+ b = parse_boolean(l+10);
+ if (b < 0)
log_debug("Failed to parse taint /usr flag %s", l+10);
else
m->taint_usr = m->taint_usr || b;
strv_free(m->environment);
m->environment = e;
- } else if (bus_deserialize_item(m, l) == 0)
+
+ } else if (startswith(l, "notify-fd=")) {
+ int fd;
+
+ if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+ log_debug("Failed to parse notify fd: %s", l + 10);
+ else {
+ if (m->notify_fd >= 0) {
+ m->notify_event_source = sd_event_source_unref(m->notify_event_source);
+ close_nointr_nofail(m->notify_fd);
+ }
+
+ m->notify_fd = fdset_remove(fds, fd);
+ }
+
+ } else if (startswith(l, "notify-socket=")) {
+ char *n;
+
+ n = strdup(l+14);
+ if (!n) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(m->notify_socket);
+ m->notify_socket = n;
+
+ } else if (startswith(l, "kdbus-fd=")) {
+ int fd;
+
+ if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+ log_debug("Failed to parse kdbus fd: %s", l + 9);
+ else {
+ if (m->kdbus_fd >= 0)
+ close_nointr_nofail(m->kdbus_fd);
+
+ m->kdbus_fd = fdset_remove(fds, fd);
+ }
+
+ } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0)
log_debug("Unknown serialization item '%s'", l);
}
}
finish:
- if (ferror(f)) {
+ if (ferror(f))
r = -EIO;
- goto finish;
- }
assert(m->n_reloading > 0);
m->n_reloading --;
fclose(f);
f = NULL;
+ /* Re-register notify_fd as event source */
+ q = manager_setup_notify(m);
+ if (q < 0)
+ r = q;
+
/* Third, fire things up! */
q = manager_coldplug(m);
if (q < 0)
m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
if (hashmap_size(m->jobs) > 0) {
- if (m->jobs_in_progress_event_source)
- sd_event_source_set_time(m->jobs_in_progress_event_source, JOBS_IN_PROGRESS_PERIOD_SEC);
+
+ if (m->jobs_in_progress_event_source) {
+ sd_event_source_set_time(m->jobs_in_progress_event_source,
+ now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
+ }
+
return;
}
+ manager_flip_auto_status(m, false);
+
/* Notify Type=idle units that we are done now */
m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
manager_close_idle_pipe(m);
if (!log_on_console())
log_struct(LOG_INFO,
MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
- "KERNEL_USEC=%llu", (unsigned long long) kernel_usec,
- "INITRD_USEC=%llu", (unsigned long long) initrd_usec,
- "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec,
+ "KERNEL_USEC="USEC_FMT, kernel_usec,
+ "INITRD_USEC="USEC_FMT, initrd_usec,
+ "USERSPACE_USEC="USEC_FMT, userspace_usec,
"MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
if (!log_on_console())
log_struct(LOG_INFO,
MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
- "KERNEL_USEC=%llu", (unsigned long long) kernel_usec,
- "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec,
+ "KERNEL_USEC="USEC_FMT, kernel_usec,
+ "USERSPACE_USEC="USEC_FMT, userspace_usec,
"MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.",
format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
if (!log_on_console())
log_struct(LOG_INFO,
MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
- "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec,
+ "USERSPACE_USEC="USEC_FMT, userspace_usec,
"MESSAGE=Startup finished in %s.",
format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
NULL);
return 0;
if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
+ /* systemd --system, not running --test */
p = strappend("/run/systemd/", name);
if (!p)
return log_oom();
+ r = mkdir_p_label(p, 0755);
+ if (r < 0) {
+ log_error("Failed to create generator directory %s: %s",
+ p, strerror(-r));
+ free(p);
+ return r;
+ }
+ } else if (m->running_as == SYSTEMD_USER) {
+ const char *s = NULL;
+
+ s = getenv("XDG_RUNTIME_DIR");
+ if (!s)
+ return -EINVAL;
+ p = strjoin(s, "/systemd/", name, NULL);
+ if (!p)
+ return log_oom();
+
r = mkdir_p_label(p, 0755);
if (r < 0) {
log_error("Failed to create generator directory %s: %s",
return r;
}
} else {
+ /* systemd --system --test */
+
p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
if (!p)
return log_oom();
argv[4] = NULL;
RUN_WITH_UMASK(0022)
- execute_directory(generator_path, d, (char**) argv);
+ execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
finish:
trim_generator_dir(m, &m->generator_unit_path);
if (b != l)
strv_free(b);
- m->environment = strv_sort(l);
+ m->environment = l;
+ manager_clean_environment(m);
+ strv_sort(m->environment);
+
return 0;
}
assert(m);
- for (i = 0; i < RLIMIT_NLIMITS; i++) {
+ for (i = 0; i < _RLIMIT_MAX; i++) {
if (!default_rlimit[i])
continue;
log_open();
}
-void manager_set_show_status(Manager *m, bool b) {
+void manager_set_show_status(Manager *m, ShowStatus mode) {
assert(m);
+ assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
if (m->running_as != SYSTEMD_SYSTEM)
return;
- m->show_status = b;
+ m->show_status = mode;
- if (b)
+ if (mode > 0)
touch("/run/systemd/show-status");
else
unlink("/run/systemd/show-status");
if (m->no_console_output)
return false;
- if (m->show_status)
+ if (m->show_status > 0)
return true;
/* If Plymouth is running make sure we show the status, so
return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
}
+
+const char *manager_get_runtime_prefix(Manager *m) {
+ assert(m);
+
+ return m->running_as == SYSTEMD_SYSTEM ?
+ "/run" :
+ getenv("XDG_RUNTIME_DIR");
+}
+
+ManagerState manager_state(Manager *m) {
+ Unit *u;
+
+ assert(m);
+
+ /* Did we ever finish booting? If not then we are still starting up */
+ if (!dual_timestamp_is_set(&m->finish_timestamp))
+ return MANAGER_STARTING;
+
+ /* Is the special shutdown target queued? If so, we are in shutdown state */
+ u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
+ if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
+ return MANAGER_STOPPING;
+
+ /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
+ u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
+ if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
+ (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
+ return MANAGER_MAINTENANCE;
+
+ u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
+ if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
+ (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
+ return MANAGER_MAINTENANCE;
+
+ /* Are there any failed units? If so, we are in degraded mode */
+ if (set_size(m->failed_units) > 0)
+ return MANAGER_DEGRADED;
+
+ return MANAGER_RUNNING;
+}
+
+static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
+ [MANAGER_STARTING] = "starting",
+ [MANAGER_RUNNING] = "running",
+ [MANAGER_DEGRADED] = "degraded",
+ [MANAGER_MAINTENANCE] = "maintenance",
+ [MANAGER_STOPPING] = "stopping",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);
~ianmdlvl / elogind.git / blobdiff