SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
SIGRTMIN+0, /* systemd: start default.target */
- SIGRTMIN+1, /* systemd: start rescue.target */
+ SIGRTMIN+1, /* systemd: isolate rescue.target */
SIGRTMIN+2, /* systemd: isolate emergency.target */
SIGRTMIN+3, /* systemd: start halt.target */
SIGRTMIN+4, /* systemd: start poweroff.target */
SIGRTMIN+5, /* systemd: start reboot.target */
+ SIGRTMIN+6, /* systemd: start kexec.target */
+ SIGRTMIN+13, /* systemd: Immediate halt */
+ SIGRTMIN+14, /* systemd: Immediate poweroff */
+ SIGRTMIN+15, /* systemd: Immediate reboot */
+ SIGRTMIN+16, /* systemd: Immediate kexec */
-1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
m->audit_fd = -1;
#endif
- m->signal_watch.fd = m->mount_watch.fd = m->udev_watch.fd = m->epoll_fd = m->dev_autofs_fd = -1;
+ m->signal_watch.fd = m->mount_watch.fd = m->udev_watch.fd = m->epoll_fd = m->dev_autofs_fd = m->swap_watch.fd = -1;
m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
if (!(m->environment = strv_copy(environ)))
* around */
manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
+ manager_undo_generators(m);
+
bus_done(m);
hashmap_free(m->units);
assert(m);
+ manager_run_generators(m);
+
manager_build_unit_path_cache(m);
/* If we will deserialize make sure that during enumeration
j->type == JOB_STOP && UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(j->unit));
changes_existing_job =
- j->unit->meta.job && job_type_is_conflicting(j->type, j->unit->meta.job->type);
+ j->unit->meta.job &&
+ job_type_is_conflicting(j->type, j->unit->meta.job->type);
if (!stops_running_service && !changes_existing_job)
continue;
job_add_to_run_queue(j);
job_add_to_dbus_queue(j);
job_start_timer(j);
+
+ log_debug("Installed new job %s/%s as %u", j->unit->meta.id, job_type_to_string(j->type), (unsigned) j->id);
}
/* As last step, kill all remaining job dependencies. */
/* Second step: Try not to stop any running services if
* we don't have to. Don't try to reverse running
* jobs if we don't have to. */
- if (mode != JOB_ISOLATE)
+ if (mode == JOB_FAIL)
transaction_minimize_impact(m);
/* Third step: Drop redundant jobs */
if (unit->meta.load_state != UNIT_LOADED &&
unit->meta.load_state != UNIT_ERROR &&
- unit->meta.load_state != UNIT_BANNED) {
+ unit->meta.load_state != UNIT_MASKED) {
dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s is not loaded properly.", unit->meta.id);
return -EINVAL;
}
if (type != JOB_STOP && unit->meta.load_state == UNIT_ERROR) {
dbus_set_error(e, BUS_ERROR_LOAD_FAILED,
"Unit %s failed to load: %s. "
- "You might find more information in the system logs.",
+ "See system logs and 'systemctl status' for details.",
unit->meta.id,
strerror(-unit->meta.load_error));
return -EINVAL;
}
- if (type != JOB_STOP && unit->meta.load_state == UNIT_BANNED) {
- dbus_set_error(e, BUS_ERROR_BANNED, "Unit %s is banned.", unit->meta.id);
+ if (type != JOB_STOP && unit->meta.load_state == UNIT_MASKED) {
+ dbus_set_error(e, BUS_ERROR_MASKED, "Unit %s is masked.", unit->meta.id);
return -EINVAL;
}
/* Finally, recursively add in all dependencies. */
if (type == JOB_START || type == JOB_RELOAD_OR_START) {
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES], i)
- if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
- goto fail;
+ if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0) {
+ if (r != -EBADR)
+ goto fail;
+
+ if (e)
+ dbus_error_free(e);
+ }
+
+ SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BIND_TO], i)
+ if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0) {
+
+ if (r != -EBADR)
+ goto fail;
+
+ if (e)
+ dbus_error_free(e);
+ }
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
- if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, e, NULL)) < 0 && r != -EBADR) {
+ if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, e, NULL)) < 0) {
log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
if (e)
}
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE], i)
- if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
- goto fail;
+ if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, e, NULL)) < 0) {
+
+ if (r != -EBADR)
+ goto fail;
+
+ if (e)
+ dbus_error_free(e);
+ }
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i)
- if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, e, NULL)) < 0 && r != -EBADR) {
+ if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, e, NULL)) < 0) {
log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
if (e)
}
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTS], i)
- if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, e, NULL)) < 0 && r != -EBADR)
- goto fail;
+ if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, e, NULL)) < 0) {
+
+ if (r != -EBADR)
+ goto fail;
+
+ if (e)
+ dbus_error_free(e);
+ }
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTED_BY], i)
- if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
- goto fail;
+ if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, false, override, false, e, NULL)) < 0) {
+ log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
+
+ if (e)
+ dbus_error_free(e);
+ }
} else if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) {
SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRED_BY], i)
- if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
- goto fail;
+ if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0) {
+
+ if (r != -EBADR)
+ goto fail;
+
+ if (e)
+ dbus_error_free(e);
+ }
+
+ SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BOUND_BY], i)
+ if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0) {
+
+ if (r != -EBADR)
+ goto fail;
+
+ if (e)
+ dbus_error_free(e);
+ }
}
/* JOB_VERIFY_STARTED, JOB_RELOAD require no dependency handling */
continue;
/* No need to stop inactive jobs */
- if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)))
+ if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)) && !u->meta.job)
continue;
/* Is there already something listed for this? */
}
/* Run the exit target if there is one, if not, just exit. */
- if (manager_start_target(m, SPECIAL_EXIT_SERVICE, JOB_REPLACE) < 0) {
+ if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
m->exit_code = MANAGER_EXIT;
return 0;
}
break;
default: {
- static const char * const table[] = {
+ /* Starting SIGRTMIN+0 */
+ static const char * const target_table[] = {
[0] = SPECIAL_DEFAULT_TARGET,
[1] = SPECIAL_RESCUE_TARGET,
[2] = SPECIAL_EMERGENCY_TARGET,
[3] = SPECIAL_HALT_TARGET,
[4] = SPECIAL_POWEROFF_TARGET,
- [5] = SPECIAL_REBOOT_TARGET
+ [5] = SPECIAL_REBOOT_TARGET,
+ [6] = SPECIAL_KEXEC_TARGET
+ };
+
+ /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
+ static const ManagerExitCode code_table[] = {
+ [0] = MANAGER_HALT,
+ [1] = MANAGER_POWEROFF,
+ [2] = MANAGER_REBOOT,
+ [3] = MANAGER_KEXEC
};
if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
- (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(table)) {
- manager_start_target(m, table[sfsi.ssi_signo - SIGRTMIN],
+ (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
+ manager_start_target(m, target_table[sfsi.ssi_signo - SIGRTMIN],
(sfsi.ssi_signo == 1 || sfsi.ssi_signo == 2) ? JOB_ISOLATE : JOB_REPLACE);
break;
}
+ if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
+ (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
+ m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
+ break;
+ }
+
log_warning("Got unhandled signal <%s>.", strna(signal_to_string(sfsi.ssi_signo)));
}
}
mount_fd_event(m, ev->events);
break;
+ case WATCH_SWAP:
+ /* Some swap table change, intended for the swap subsystem */
+ swap_fd_event(m, ev->events);
+ break;
+
case WATCH_UDEV:
/* Some notification from udev, intended for the device subsystem */
device_fd_event(m, ev->events);
break;
default:
+ log_error("event type=%i", w->type);
assert_not_reached("Unknown epoll event type.");
}
if (manager_dispatch_dbus_queue(m) > 0)
continue;
+ if (swap_dispatch_reload(m) > 0)
+ continue;
+
if ((n = epoll_wait(m->epoll_fd, &event, 1, -1)) < 0) {
if (errno == EINTR)
assert(f);
assert(fds);
- fprintf(f, "startup-timestamp=%llu %llu\n\n",
- (unsigned long long) m->startup_timestamp.realtime,
- (unsigned long long) m->startup_timestamp.monotonic);
+ dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
+ dual_timestamp_serialize(f, "startup-timestamp", &m->startup_timestamp);
+ dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
+
+ fputc('\n', f);
HASHMAP_FOREACH_KEY(u, t, m->units, i) {
if (u->meta.id != t)
if (l[0] == 0)
break;
- if (startswith(l, "startup-timestamp=")) {
- unsigned long long a, b;
-
- if (sscanf(l+18, "%lli %llu", &a, &b) != 2)
- log_debug("Failed to parse startup timestamp value %s", l+18);
- else {
- m->startup_timestamp.realtime = a;
- m->startup_timestamp.monotonic = b;
- }
- } else
+ if (startswith(l, "initrd-timestamp="))
+ dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
+ else if (startswith(l, "startup-timestamp="))
+ dual_timestamp_deserialize(l+18, &m->startup_timestamp);
+ else if (startswith(l, "finish-timestamp="))
+ dual_timestamp_deserialize(l+17, &m->finish_timestamp);
+ else
log_debug("Unknown serialization item '%s'", l);
}
/* From here on there is no way back. */
manager_clear_jobs_and_units(m);
+ manager_undo_generators(m);
/* Find new unit paths */
lookup_paths_free(&m->lookup_paths);
if ((q = lookup_paths_init(&m->lookup_paths, m->running_as)) < 0)
r = q;
+ manager_run_generators(m);
+
+ manager_build_unit_path_cache(m);
+
m->n_deserializing ++;
/* First, enumerate what we can from all config files */
}
void manager_check_finished(Manager *m) {
- char userspace[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
+ char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
assert(m);
dual_timestamp_get(&m->finish_timestamp);
- if (m->running_as == MANAGER_SYSTEM)
- log_info("Startup finished in %s (kernel) + %s (userspace) = %s.",
- format_timespan(kernel, sizeof(kernel),
- m->startup_timestamp.monotonic),
- format_timespan(userspace, sizeof(userspace),
- m->finish_timestamp.monotonic - m->startup_timestamp.monotonic),
- format_timespan(sum, sizeof(sum),
- m->finish_timestamp.monotonic));
- else
+ if (m->running_as == MANAGER_SYSTEM) {
+ if (dual_timestamp_is_set(&m->initrd_timestamp)) {
+ log_info("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
+ format_timespan(kernel, sizeof(kernel),
+ m->initrd_timestamp.monotonic),
+ format_timespan(initrd, sizeof(initrd),
+ m->startup_timestamp.monotonic - m->initrd_timestamp.monotonic),
+ format_timespan(userspace, sizeof(userspace),
+ m->finish_timestamp.monotonic - m->startup_timestamp.monotonic),
+ format_timespan(sum, sizeof(sum),
+ m->finish_timestamp.monotonic));
+ } else
+ log_info("Startup finished in %s (kernel) + %s (userspace) = %s.",
+ format_timespan(kernel, sizeof(kernel),
+ m->startup_timestamp.monotonic),
+ format_timespan(userspace, sizeof(userspace),
+ m->finish_timestamp.monotonic - m->startup_timestamp.monotonic),
+ format_timespan(sum, sizeof(sum),
+ m->finish_timestamp.monotonic));
+ } else
log_debug("Startup finished in %s.",
format_timespan(userspace, sizeof(userspace),
m->finish_timestamp.monotonic - m->startup_timestamp.monotonic));
}
+void manager_run_generators(Manager *m) {
+ DIR *d = NULL;
+ struct dirent *de;
+ Hashmap *pids = NULL;
+ const char *generator_path;
+
+ assert(m);
+
+ generator_path = m->running_as == MANAGER_SYSTEM ? SYSTEM_GENERATOR_PATH : SESSION_GENERATOR_PATH;
+ if (!(d = opendir(generator_path))) {
+
+ if (errno == ENOENT)
+ return;
+
+ log_error("Failed to enumerate generator directory: %m");
+ return;
+ }
+
+ if (!m->generator_unit_path) {
+ char *p;
+ char system_path[] = "/dev/.systemd/generator-XXXXXX",
+ session_path[] = "/tmp/systemd-generator-XXXXXX";
+
+ if (!(p = mkdtemp(m->running_as == MANAGER_SYSTEM ? system_path : session_path))) {
+ log_error("Failed to generate generator directory: %m");
+ goto finish;
+ }
+
+ if (!(m->generator_unit_path = strdup(p))) {
+ log_error("Failed to allocate generator unit path.");
+ goto finish;
+ }
+ }
+
+ if (!(pids = hashmap_new(trivial_hash_func, trivial_compare_func))) {
+ log_error("Failed to allocate set.");
+ goto finish;
+ }
+
+ while ((de = readdir(d))) {
+ char *path;
+ pid_t pid;
+ int k;
+
+ if (ignore_file(de->d_name))
+ continue;
+
+ if (de->d_type != DT_REG &&
+ de->d_type != DT_LNK &&
+ de->d_type != DT_UNKNOWN)
+ continue;
+
+ if (asprintf(&path, "%s/%s", generator_path, de->d_name) < 0) {
+ log_error("Out of memory");
+ continue;
+ }
+
+ if ((pid = fork()) < 0) {
+ log_error("Failed to fork: %m");
+ free(path);
+ continue;
+ }
+
+ if (pid == 0) {
+ const char *arguments[5];
+ /* Child */
+
+ arguments[0] = path;
+ arguments[1] = m->generator_unit_path;
+ arguments[2] = NULL;
+
+ execv(path, (char **) arguments);
+
+ log_error("Failed to execute %s: %m", path);
+ _exit(EXIT_FAILURE);
+ }
+
+ log_debug("Spawned generator %s as %lu", path, (unsigned long) pid);
+
+ if ((k = hashmap_put(pids, UINT_TO_PTR(pid), path)) < 0) {
+ log_error("Failed to add PID to set: %s", strerror(-k));
+ free(path);
+ }
+ }
+
+ while (!hashmap_isempty(pids)) {
+ siginfo_t si;
+ char *path;
+
+ zero(si);
+ if (waitid(P_ALL, 0, &si, WEXITED) < 0) {
+
+ if (errno == EINTR)
+ continue;
+
+ log_error("waitid() failed: %m");
+ goto finish;
+ }
+
+ if ((path = hashmap_remove(pids, UINT_TO_PTR(si.si_pid)))) {
+ if (!is_clean_exit(si.si_code, si.si_status)) {
+ if (si.si_code == CLD_EXITED)
+ log_error("%s exited with exit status %i.", path, si.si_status);
+ else
+ log_error("%s terminated by signal %s.", path, signal_to_string(si.si_status));
+ } else
+ log_debug("Generator %s exited successfully.", path);
+
+ free(path);
+ }
+ }
+
+ if (rmdir(m->generator_unit_path) >= 0) {
+ /* Uh? we were able to remove this dir? I guess that
+ * means the directory was empty, hence let's shortcut
+ * this */
+
+ free(m->generator_unit_path);
+ m->generator_unit_path = NULL;
+ goto finish;
+ }
+
+ if (!strv_find(m->lookup_paths.unit_path, m->generator_unit_path)) {
+ char **l;
+
+ if (!(l = strv_append(m->lookup_paths.unit_path, m->generator_unit_path))) {
+ log_error("Failed to add generator directory to unit search path: %m");
+ goto finish;
+ }
+
+ strv_free(m->lookup_paths.unit_path);
+ m->lookup_paths.unit_path = l;
+
+ log_debug("Added generator unit path %s to search path.", m->generator_unit_path);
+ }
+
+finish:
+ if (d)
+ closedir(d);
+
+ if (pids)
+ hashmap_free_free(pids);
+}
+
+void manager_undo_generators(Manager *m) {
+ assert(m);
+
+ if (!m->generator_unit_path)
+ return;
+
+ strv_remove(m->lookup_paths.unit_path, m->generator_unit_path);
+ rm_rf(m->generator_unit_path, false, true);
+
+ free(m->generator_unit_path);
+ m->generator_unit_path = NULL;
+}
+
static const char* const manager_running_as_table[_MANAGER_RUNNING_AS_MAX] = {
[MANAGER_SYSTEM] = "system",
[MANAGER_SESSION] = "session"
~ianmdlvl / elogind.git / blobdiff