#include "cgroup-util.h"
#include "missing.h"
#include "cgroup-attr.h"
+#include "mkdir.h"
+#include "label.h"
+#include "fileio-label.h"
+#include "bus-errors.h"
const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = &service_vtable,
[UNIT_AUTOMOUNT] = &automount_vtable,
[UNIT_SNAPSHOT] = &snapshot_vtable,
[UNIT_SWAP] = &swap_vtable,
- [UNIT_PATH] = &path_vtable
+ [UNIT_PATH] = &path_vtable,
+ [UNIT_SLICE] = &slice_vtable
};
Unit *unit_new(Manager *m, size_t size) {
strv_free(u->documentation);
free(u->fragment_path);
free(u->source_path);
+ strv_free(u->dropin_paths);
free(u->instance);
set_free_free(u->names);
condition_free_list(u->conditions);
+ unit_ref_unset(&u->slice);
+
while (u->refs)
unit_ref_unset(u->refs);
/* If syslog or kernel logging is requested, make sure our own
* logging daemon is run first. */
- if (u->manager->running_as == SYSTEMD_SYSTEM)
- if ((r = unit_add_two_dependencies_by_name(u, UNIT_REQUIRES, UNIT_AFTER, SPECIAL_JOURNALD_SOCKET, NULL, true)) < 0)
+ if (u->manager->running_as == SYSTEMD_SYSTEM) {
+ r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_JOURNALD_SOCKET, NULL, true);
+ if (r < 0)
return r;
+ }
return 0;
}
if (u->source_path)
fprintf(f, "%s\tSource Path: %s\n", prefix, u->source_path);
+ STRV_FOREACH(j, u->dropin_paths)
+ fprintf(f, "%s\tDropIn Path: %s\n", prefix, *j);
+
if (u->job_timeout > 0)
- fprintf(f, "%s\tJob Timeout: %s\n", prefix, format_timespan(timespan, sizeof(timespan), u->job_timeout));
+ fprintf(f, "%s\tJob Timeout: %s\n", prefix, format_timespan(timespan, sizeof(timespan), u->job_timeout, 0));
condition_dump_list(u->conditions, f, prefix);
prefix, b->controller, b->path);
LIST_FOREACH(by_unit, a, u->cgroup_attributes) {
- char *v = NULL;
+ _cleanup_free_ char *v = NULL;
- if (a->map_callback)
- a->map_callback(a->controller, a->name, a->value, &v);
+ if (a->semantics && a->semantics->map_write)
+ a->semantics->map_write(a->semantics, a->value, &v);
fprintf(f, "%s\tControlGroupAttribute: %s %s \"%s\"\n",
prefix, a->controller, a->name, v ? v : a->value);
-
- free(v);
}
if (UNIT_VTABLE(u)->dump)
}
static int unit_add_default_dependencies(Unit *u) {
+
static const UnitDependency deps[] = {
UNIT_REQUIRED_BY,
UNIT_REQUIRED_BY_OVERRIDABLE,
assert(u);
for (k = 0; k < ELEMENTSOF(deps); k++)
- SET_FOREACH(target, u->dependencies[deps[k]], i)
- if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ SET_FOREACH(target, u->dependencies[deps[k]], i) {
+ r = unit_add_default_target_dependency(u, target);
+ if (r < 0)
return r;
+ }
+
+ if (u->default_dependencies && UNIT_DEREF(u->slice)) {
+ r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_WANTS, UNIT_DEREF(u->slice), true);
+ if (r < 0)
+ return r;
+ }
return 0;
}
if (u->on_failure_isolate &&
set_size(u->dependencies[UNIT_ON_FAILURE]) > 1) {
- log_error("More than one OnFailure= dependencies specified for %s but OnFailureIsolate= enabled. Refusing.",
- u->id);
+ log_error_unit(u->id,
+ "More than one OnFailure= dependencies specified for %s but OnFailureIsolate= enabled. Refusing.", u->id);
r = -EINVAL;
goto fail;
unit_add_to_dbus_queue(u);
unit_add_to_gc_queue(u);
- log_debug("Failed to load configuration for %s: %s", u->id, strerror(-r));
+ log_debug_unit(u->id, "Failed to load configuration for %s: %s",
+ u->id, strerror(-r));
return r;
}
return u->condition_result;
}
-static const char* unit_get_status_message_format(Unit *u, JobType t) {
+_pure_ static const char* unit_get_status_message_format(Unit *u, JobType t) {
const UnitStatusMessageFormats *format_table;
assert(u);
return format_table->starting_stopping[t == JOB_STOP];
}
-static const char *unit_get_status_message_format_try_harder(Unit *u, JobType t) {
+_pure_ static const char *unit_get_status_message_format_try_harder(Unit *u, JobType t) {
const char *format;
assert(u);
if (!format)
return;
- unit_status_printf(u, "", format, unit_description(u));
+ unit_status_printf(u, "", format);
}
#pragma GCC diagnostic push
t == JOB_STOP ? SD_MESSAGE_UNIT_STOPPING :
SD_MESSAGE_UNIT_RELOADING;
- log_struct(LOG_INFO,
- MESSAGE_ID(mid),
- "UNIT=%s", u->id,
- "MESSAGE=%s", buf,
- NULL);
+ log_struct_unit(LOG_INFO,
+ u->id,
+ MESSAGE_ID(mid),
+ "MESSAGE=%s", buf,
+ NULL);
}
#pragma GCC diagnostic pop
* but we don't want to recheck the condition in that case. */
if (state != UNIT_ACTIVATING &&
!unit_condition_test(u)) {
- log_debug("Starting of %s requested but condition failed. Ignoring.", u->id);
+ log_debug_unit(u->id, "Starting of %s requested but condition failed. Ignoring.", u->id);
return -EALREADY;
}
/* Forward to the main object, if we aren't it. */
if ((following = unit_following(u))) {
- log_debug("Redirecting start request from %s to %s.", u->id, following->id);
+ log_debug_unit(u->id, "Redirecting start request from %s to %s.",
+ u->id, following->id);
return unit_start(following);
}
return -EALREADY;
if ((following = unit_following(u))) {
- log_debug("Redirecting stop request from %s to %s.", u->id, following->id);
+ log_debug_unit(u->id, "Redirecting stop request from %s to %s.",
+ u->id, following->id);
return unit_stop(following);
}
return -ENOEXEC;
if ((following = unit_following(u))) {
- log_debug("Redirecting reload request from %s to %s.", u->id, following->id);
+ log_debug_unit(u->id, "Redirecting reload request from %s to %s.",
+ u->id, following->id);
return unit_reload(following);
}
return;
SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i)
- if (unit_pending_active(other))
+ if (unit_active_or_pending(other))
return;
SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
- if (unit_pending_active(other))
+ if (unit_active_or_pending(other))
return;
SET_FOREACH(other, u->dependencies[UNIT_WANTED_BY], i)
- if (unit_pending_active(other))
+ if (unit_active_or_pending(other))
return;
SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i)
- if (unit_pending_active(other))
+ if (unit_active_or_pending(other))
return;
- log_info("Service %s is not needed anymore. Stopping.", u->id);
+ log_info_unit(u->id, "Service %s is not needed anymore. Stopping.", u->id);
/* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */
manager_add_job(u->manager, JOB_STOP, u, JOB_FAIL, true, NULL, NULL);
!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
manager_add_job(u->manager, JOB_START, other, JOB_FAIL, false, NULL, NULL);
- SET_FOREACH(other, u->dependencies[UNIT_REQUISITE], i)
- if (!set_get(u->dependencies[UNIT_AFTER], other) &&
- !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
- manager_add_job(u->manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL);
-
SET_FOREACH(other, u->dependencies[UNIT_WANTS], i)
if (!set_get(u->dependencies[UNIT_AFTER], other) &&
!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
unit_check_unneeded(other);
}
-void unit_trigger_on_failure(Unit *u) {
+void unit_start_on_failure(Unit *u) {
Unit *other;
Iterator i;
if (set_size(u->dependencies[UNIT_ON_FAILURE]) <= 0)
return;
- log_info("Triggering OnFailure= dependencies of %s.", u->id);
+ log_info_unit(u->id, "Triggering OnFailure= dependencies of %s.", u->id);
SET_FOREACH(other, u->dependencies[UNIT_ON_FAILURE], i) {
int r;
- if ((r = manager_add_job(u->manager, JOB_START, other, u->on_failure_isolate ? JOB_ISOLATE : JOB_REPLACE, true, NULL, NULL)) < 0)
- log_error("Failed to enqueue OnFailure= job: %s", strerror(-r));
+ r = manager_add_job(u->manager, JOB_START, other, u->on_failure_isolate ? JOB_ISOLATE : JOB_REPLACE, true, NULL, NULL);
+ if (r < 0)
+ log_error_unit(u->id, "Failed to enqueue OnFailure= job: %s", strerror(-r));
}
}
+void unit_trigger_notify(Unit *u) {
+ Unit *other;
+ Iterator i;
+
+ assert(u);
+
+ SET_FOREACH(other, u->dependencies[UNIT_TRIGGERED_BY], i)
+ if (UNIT_VTABLE(other)->trigger_notify)
+ UNIT_VTABLE(other)->trigger_notify(other, u);
+}
+
void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success) {
+ Manager *m;
bool unexpected;
assert(u);
* behavior here. For example: if a mount point is remounted
* this function will be called too! */
- if (u->manager->n_reloading <= 0) {
+ m = u->manager;
+
+ if (m->n_reloading <= 0) {
dual_timestamp ts;
dual_timestamp_get(&ts);
u->active_enter_timestamp = ts;
else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns))
u->active_exit_timestamp = ts;
-
- timer_unit_notify(u, ns);
- path_unit_notify(u, ns);
}
if (UNIT_IS_INACTIVE_OR_FAILED(ns))
cgroup_bonding_trim_list(u->cgroup_bondings, true);
+ if (UNIT_IS_INACTIVE_OR_FAILED(os) != UNIT_IS_INACTIVE_OR_FAILED(ns)) {
+ ExecContext *ec = unit_get_exec_context(u);
+ if (ec && exec_context_may_touch_console(ec)) {
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ m->n_on_console--;
+ else
+ m->n_on_console++;
+ }
+ }
+
if (u->job) {
unexpected = false;
} else
unexpected = true;
- if (u->manager->n_reloading <= 0) {
+ if (m->n_reloading <= 0) {
/* If this state change happened without being
* requested by a job, then let's retroactively start
check_unneeded_dependencies(u);
if (ns != os && ns == UNIT_FAILED) {
- log_struct(LOG_NOTICE,
- "MESSAGE=Unit %s entered failed state", u->id,
- "UNIT=%s", u->id,
- NULL);
- unit_trigger_on_failure(u);
+ log_notice_unit(u->id,
+ "Unit %s entered failed state.", u->id);
+ unit_start_on_failure(u);
}
}
/* The bus just might have become available,
* hence try to connect to it, if we aren't
* yet connected. */
- bus_init(u->manager, true);
+ bus_init(m, true);
if (u->type == UNIT_SERVICE &&
!UNIT_IS_ACTIVE_OR_RELOADING(os) &&
- u->manager->n_reloading <= 0) {
+ m->n_reloading <= 0) {
/* Write audit record if we have just finished starting up */
- manager_send_unit_audit(u->manager, u, AUDIT_SERVICE_START, true);
+ manager_send_unit_audit(m, u, AUDIT_SERVICE_START, true);
u->in_audit = true;
}
if (!UNIT_IS_ACTIVE_OR_RELOADING(os))
- manager_send_unit_plymouth(u->manager, u);
+ manager_send_unit_plymouth(m, u);
} else {
if (u->type == UNIT_SERVICE &&
UNIT_IS_INACTIVE_OR_FAILED(ns) &&
!UNIT_IS_INACTIVE_OR_FAILED(os) &&
- u->manager->n_reloading <= 0) {
+ m->n_reloading <= 0) {
/* Hmm, if there was no start record written
* write it now, so that we always have a nice
* pair */
if (!u->in_audit) {
- manager_send_unit_audit(u->manager, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE);
+ manager_send_unit_audit(m, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE);
if (ns == UNIT_INACTIVE)
- manager_send_unit_audit(u->manager, u, AUDIT_SERVICE_STOP, true);
+ manager_send_unit_audit(m, u, AUDIT_SERVICE_STOP, true);
} else
/* Write audit record if we have just finished shutting down */
- manager_send_unit_audit(u->manager, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
+ manager_send_unit_audit(m, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
u->in_audit = false;
}
}
- manager_recheck_journal(u->manager);
+ manager_recheck_journal(m);
+ unit_trigger_notify(u);
/* Maybe we finished startup and are now ready for being
* stopped because unneeded? */
- unit_check_unneeded(u);
+ if (u->manager->n_reloading <= 0)
+ unit_check_unneeded(u);
unit_add_to_dbus_queue(u);
unit_add_to_gc_queue(u);
}
int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w) {
- struct epoll_event ev;
+ struct epoll_event ev = {
+ .data.ptr = w,
+ .events = events,
+ };
assert(u);
assert(fd >= 0);
assert(w);
assert(w->type == WATCH_INVALID || (w->type == WATCH_FD && w->fd == fd && w->data.unit == u));
- zero(ev);
- ev.data.ptr = w;
- ev.events = events;
-
if (epoll_ctl(u->manager->epoll_fd,
w->type == WATCH_INVALID ? EPOLL_CTL_ADD : EPOLL_CTL_MOD,
fd,
}
int unit_watch_timer(Unit *u, clockid_t clock_id, bool relative, usec_t usec, Watch *w) {
- struct itimerspec its;
+ struct itimerspec its = {};
int flags, fd;
bool ours;
} else
assert_not_reached("Invalid watch type");
- zero(its);
-
if (usec <= 0) {
/* Set absolute time in the past, but not 0, since we
* don't want to disarm the timer */
goto fail;
if (w->type == WATCH_INVALID) {
- struct epoll_event ev;
-
- zero(ev);
- ev.data.ptr = w;
- ev.events = EPOLLIN;
+ struct epoll_event ev = {
+ .data.ptr = w,
+ .events = EPOLLIN,
+ };
if (epoll_ctl(u->manager->epoll_fd, EPOLL_CTL_ADD, fd, &ev) < 0)
goto fail;
if (u->instance)
s = unit_name_replace_instance(name, u->instance);
else {
- char *i;
+ _cleanup_free_ char *i = NULL;
i = unit_name_to_prefix(u->id);
if (!i)
return NULL;
s = unit_name_replace_instance(name, i);
- free(i);
}
if (!s)
}
int set_unit_path(const char *p) {
- char *cwd, *c;
- int r;
+ _cleanup_free_ char *c = NULL;
/* This is mostly for debug purposes */
-
- if (path_is_absolute(p)) {
- if (!(c = strdup(p)))
- return -ENOMEM;
- } else {
- if (!(cwd = get_current_dir_name()))
- return -errno;
-
- r = asprintf(&c, "%s/%s", cwd, p);
- free(cwd);
-
- if (r < 0)
- return -ENOMEM;
- }
-
- if (setenv("SYSTEMD_UNIT_PATH", c, 0) < 0) {
- r = -errno;
- free(c);
- return r;
- }
+ c = path_make_absolute_cwd(p);
+ if (setenv("SYSTEMD_UNIT_PATH", c, 0) < 0)
+ return -errno;
return 0;
}
return unit_dbus_path_from_name(u->id);
}
-int unit_add_cgroup(Unit *u, CGroupBonding *b) {
+static int unit_add_cgroup(Unit *u, CGroupBonding *b) {
int r;
assert(u);
assert(b->path);
if (!b->controller) {
- if (!(b->controller = strdup(SYSTEMD_CGROUP_CONTROLLER)))
- return -ENOMEM;
+ b->controller = strdup(SYSTEMD_CGROUP_CONTROLLER);
+ if (!b->controller)
+ return log_oom();
b->ours = true;
}
l = hashmap_get(u->manager->cgroup_bondings, b->path);
LIST_PREPEND(CGroupBonding, by_path, l, b);
- if ((r = hashmap_replace(u->manager->cgroup_bondings, b->path, l)) < 0) {
+ r = hashmap_replace(u->manager->cgroup_bondings, b->path, l);
+ if (r < 0) {
LIST_REMOVE(CGroupBonding, by_path, l, b);
return r;
}
}
char *unit_default_cgroup_path(Unit *u) {
- char *p;
+ _cleanup_free_ char *escaped_instance = NULL, *slice = NULL;
+ int r;
assert(u);
+ if (UNIT_DEREF(u->slice)) {
+ r = cg_slice_to_path(UNIT_DEREF(u->slice)->id, &slice);
+ if (r < 0)
+ return NULL;
+ }
+
+ escaped_instance = cg_escape(u->id);
+ if (!escaped_instance)
+ return NULL;
+
if (u->instance) {
- char *t;
+ _cleanup_free_ char *t = NULL, *escaped_template = NULL;
t = unit_name_template(u->id);
if (!t)
return NULL;
- p = strjoin(u->manager->cgroup_hierarchy, "/", t, "/", u->instance, NULL);
- free(t);
- } else
- p = strjoin(u->manager->cgroup_hierarchy, "/", u->id, NULL);
+ escaped_template = cg_escape(t);
+ if (!escaped_template)
+ return NULL;
- return p;
+ return strjoin(u->manager->cgroup_hierarchy, "/",
+ slice ? slice : "", slice ? "/" : "",
+ escaped_template, "/", escaped_instance, NULL);
+ } else
+ return strjoin(u->manager->cgroup_hierarchy, "/",
+ slice ? slice : "", slice ? "/" : "",
+ escaped_instance, NULL);
}
-int unit_add_cgroup_from_text(Unit *u, const char *name) {
+int unit_add_cgroup_from_text(Unit *u, const char *name, bool overwrite, CGroupBonding **ret) {
char *controller = NULL, *path = NULL;
CGroupBonding *b = NULL;
bool ours = false;
assert(u);
assert(name);
- if ((r = cg_split_spec(name, &controller, &path)) < 0)
+ r = cg_split_spec(name, &controller, &path);
+ if (r < 0)
return r;
if (!path) {
}
if (!controller) {
- controller = strdup(SYSTEMD_CGROUP_CONTROLLER);
+ controller = strdup("systemd");
ours = true;
}
if (!path || !controller) {
free(path);
free(controller);
+ return log_oom();
+ }
- return -ENOMEM;
+ if (streq(controller, "systemd")) {
+ /* Within the systemd unit hierarchy we do not allow changes. */
+ if (path_startswith(path, "/system")) {
+ log_warning_unit(u->id, "Manipulating the systemd:/system cgroup hierarchy is not permitted.");
+ free(path);
+ free(controller);
+ return -EPERM;
+ }
}
- if (cgroup_bonding_find_list(u->cgroup_bondings, controller)) {
+ b = cgroup_bonding_find_list(u->cgroup_bondings, controller);
+ if (b) {
+ if (streq(path, b->path)) {
+ free(path);
+ free(controller);
+
+ if (ret)
+ *ret = b;
+ return 0;
+ }
+
+ if (overwrite && !b->essential) {
+ free(controller);
+
+ free(b->path);
+ b->path = path;
+
+ b->ours = ours;
+ b->realized = false;
+
+ if (ret)
+ *ret = b;
+
+ return 1;
+ }
+
r = -EEXIST;
+ b = NULL;
goto fail;
}
- if (!(b = new0(CGroupBonding, 1))) {
+ b = new0(CGroupBonding, 1);
+ if (!b) {
r = -ENOMEM;
goto fail;
}
b->ours = ours;
b->essential = streq(controller, SYSTEMD_CGROUP_CONTROLLER);
- if ((r = unit_add_cgroup(u, b)) < 0)
+ r = unit_add_cgroup(u, b);
+ if (r < 0)
goto fail;
- return 0;
+ if (ret)
+ *ret = b;
+
+ return 1;
fail:
free(path);
assert(u);
+ if (controller && !cg_controller_is_valid(controller, true))
+ return -EINVAL;
+
if (!controller)
controller = SYSTEMD_CGROUP_CONTROLLER;
if (cgroup_bonding_find_list(u->cgroup_bondings, controller))
return 0;
- if (!(b = new0(CGroupBonding, 1)))
+ b = new0(CGroupBonding, 1);
+ if (!b)
return -ENOMEM;
- if (!(b->controller = strdup(controller)))
+ b->controller = strdup(controller);
+ if (!b->controller)
goto fail;
b->path = unit_default_cgroup_path(u);
b->ours = true;
b->essential = streq(controller, SYSTEMD_CGROUP_CONTROLLER);
- if ((r = unit_add_cgroup(u, b)) < 0)
+ r = unit_add_cgroup(u, b);
+ if (r < 0)
goto fail;
- return 0;
+ return 1;
fail:
free(b->path);
return r;
}
+int unit_add_default_slice(Unit *u) {
+ Unit *slice;
+ int r;
+
+ assert(u);
+
+ if (UNIT_DEREF(u->slice))
+ return 0;
+
+ if (u->manager->running_as != SYSTEMD_SYSTEM)
+ return 0;
+
+ r = manager_load_unit(u->manager, SPECIAL_SYSTEM_SLICE, NULL, NULL, &slice);
+ if (r < 0)
+ return r;
+
+ unit_ref_set(&u->slice, slice);
+ return 0;
+}
+
int unit_add_default_cgroups(Unit *u) {
CGroupAttribute *a;
char **c;
if (!u->manager->cgroup_hierarchy)
return 0;
- if ((r = unit_add_one_default_cgroup(u, NULL)) < 0)
+ r = unit_add_one_default_cgroup(u, NULL);
+ if (r < 0)
return r;
STRV_FOREACH(c, u->manager->default_controllers)
CGroupBonding* unit_get_default_cgroup(Unit *u) {
assert(u);
- return cgroup_bonding_find_list(u->cgroup_bondings, SYSTEMD_CGROUP_CONTROLLER);
+ return cgroup_bonding_find_list(u->cgroup_bondings, NULL);
}
-int unit_add_cgroup_attribute(Unit *u, const char *controller, const char *name, const char *value, CGroupAttributeMapCallback map_callback) {
- int r;
- char *c = NULL;
+int unit_add_cgroup_attribute(
+ Unit *u,
+ const CGroupSemantics *semantics,
+ const char *controller,
+ const char *name,
+ const char *value,
+ CGroupAttribute **ret) {
+
+ _cleanup_free_ char *c = NULL;
CGroupAttribute *a;
+ int r;
assert(u);
- assert(name);
assert(value);
- if (!controller) {
- const char *dot;
+ if (semantics) {
+ /* Semantics always take precedence */
+ if (semantics->name)
+ name = semantics->name;
- dot = strchr(name, '.');
- if (!dot)
- return -EINVAL;
+ if (semantics->controller)
+ controller = semantics->controller;
+ }
- c = strndup(name, dot - name);
- if (!c)
- return -ENOMEM;
+ if (!name)
+ return -EINVAL;
+
+ if (!controller) {
+ r = cg_controller_from_attr(name, &c);
+ if (r < 0)
+ return -EINVAL;
controller = c;
}
- if (streq(controller, SYSTEMD_CGROUP_CONTROLLER)) {
- r = -EINVAL;
- goto finish;
+ if (!controller ||
+ streq(controller, SYSTEMD_CGROUP_CONTROLLER) ||
+ streq(controller, "systemd"))
+ return -EINVAL;
+
+ if (!filename_is_safe(name))
+ return -EINVAL;
+
+ if (!cg_controller_is_valid(controller, false))
+ return -EINVAL;
+
+ /* Check if this attribute already exists. Note that we will
+ * explicitly check for the value here too, as there are
+ * attributes which accept multiple values. */
+ a = cgroup_attribute_find_list(u->cgroup_attributes, controller, name);
+ if (a) {
+ if (streq(value, a->value)) {
+ /* Exactly the same value is always OK, let's ignore this */
+ if (ret)
+ *ret = a;
+
+ return 0;
+ }
+
+ if (semantics && !semantics->multiple) {
+ char *v;
+
+ /* If this is a single-item entry, we can
+ * simply patch the existing attribute */
+
+ v = strdup(value);
+ if (!v)
+ return -ENOMEM;
+
+ free(a->value);
+ a->value = v;
+
+ if (ret)
+ *ret = a;
+ return 1;
+ }
}
a = new0(CGroupAttribute, 1);
- if (!a) {
- r = -ENOMEM;
- goto finish;
- }
+ if (!a)
+ return -ENOMEM;
if (c) {
a->controller = c;
free(a->name);
free(a->value);
free(a);
-
return -ENOMEM;
}
- a->map_callback = map_callback;
+ a->semantics = semantics;
+ a->unit = u;
LIST_PREPEND(CGroupAttribute, by_unit, u->cgroup_attributes, a);
- r = 0;
+ if (ret)
+ *ret = a;
-finish:
- free(c);
- return r;
+ return 1;
}
int unit_load_related_unit(Unit *u, const char *type, Unit **_found) {
- char *t;
+ _cleanup_free_ char *t = NULL;
int r;
assert(u);
assert(type);
assert(_found);
- if (!(t = unit_name_change_suffix(u->id, type)))
+ t = unit_name_change_suffix(u->id, type);
+ if (!t)
return -ENOMEM;
assert(!unit_has_name(u, t));
r = manager_load_unit(u->manager, t, NULL, NULL, _found);
- free(t);
-
assert(r < 0 || *_found != u);
-
return r;
}
int unit_get_related_unit(Unit *u, const char *type, Unit **_found) {
+ _cleanup_free_ char *t = NULL;
Unit *found;
- char *t;
assert(u);
assert(type);
assert(_found);
- if (!(t = unit_name_change_suffix(u->id, type)))
+ t = unit_name_change_suffix(u->id, type);
+ if (!t)
return -ENOMEM;
assert(!unit_has_name(u, t));
found = manager_get_unit(u->manager, t);
- free(t);
-
if (!found)
return -ENOENT;
job_free(j);
return r;
}
+
+ if (j->state == JOB_RUNNING)
+ u->manager->n_running_jobs++;
} else {
/* legacy */
JobType type = job_type_from_string(v);
return 0;
}
-void unit_status_printf(Unit *u, const char *status, const char *format, ...) {
- va_list ap;
-
- assert(u);
- assert(format);
-
- if (!manager_get_show_status(u->manager))
- return;
-
- if (!manager_is_booting_or_shutting_down(u->manager))
- return;
-
- va_start(ap, format);
- status_vprintf(status, true, format, ap);
- va_end(ap);
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) {
+ manager_status_printf(u->manager, false, status, unit_status_msg_format, unit_description(u));
}
+#pragma GCC diagnostic pop
bool unit_need_daemon_reload(Unit *u) {
+ _cleanup_strv_free_ char **t = NULL;
+ char **path;
struct stat st;
+ unsigned loaded_cnt, current_cnt;
assert(u);
return true;
}
- return false;
+ t = unit_find_dropin_paths(u);
+ loaded_cnt = strv_length(t);
+ current_cnt = strv_length(u->dropin_paths);
+
+ if (loaded_cnt == current_cnt) {
+ if (loaded_cnt == 0)
+ return false;
+
+ if (strv_overlap(u->dropin_paths, t)) {
+ STRV_FOREACH(path, u->dropin_paths) {
+ zero(st);
+ if (stat(*path, &st) < 0)
+ return true;
+
+ if (u->dropin_mtime > 0 &&
+ timespec_load(&st.st_mtim) > u->dropin_mtime)
+ return true;
+ }
+
+ return false;
+ } else
+ return true;
+ } else
+ return true;
}
void unit_reset_failed(Unit *u) {
return NULL;
}
-bool unit_pending_inactive(Unit *u) {
+bool unit_stop_pending(Unit *u) {
+ assert(u);
+
+ /* This call does check the current state of the unit. It's
+ * hence useful to be called from state change calls of the
+ * unit itself, where the state isn't updated yet. This is
+ * different from unit_inactive_or_pending() which checks both
+ * the current state and for a queued job. */
+
+ return u->job && u->job->type == JOB_STOP;
+}
+
+bool unit_inactive_or_pending(Unit *u) {
assert(u);
/* Returns true if the unit is inactive or going down */
if (UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u)))
return true;
- if (u->job && u->job->type == JOB_STOP)
+ if (unit_stop_pending(u))
return true;
return false;
}
-bool unit_pending_active(Unit *u) {
+bool unit_active_or_pending(Unit *u) {
assert(u);
/* Returns true if the unit is active or going up */
return UNIT_VTABLE(u)->kill(u, w, signo, error);
}
+int unit_kill_common(
+ Unit *u,
+ KillWho who,
+ int signo,
+ pid_t main_pid,
+ pid_t control_pid,
+ DBusError *error) {
+
+ int r = 0;
+
+ if (who == KILL_MAIN && main_pid <= 0) {
+ if (main_pid < 0)
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no main processes", unit_type_to_string(u->type));
+ else
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
+ return -ESRCH;
+ }
+
+ if (who == KILL_CONTROL && control_pid <= 0) {
+ if (control_pid < 0)
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no control processes", unit_type_to_string(u->type));
+ else
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
+ return -ESRCH;
+ }
+
+ if (who == KILL_CONTROL || who == KILL_ALL)
+ if (control_pid > 0)
+ if (kill(control_pid, signo) < 0)
+ r = -errno;
+
+ if (who == KILL_MAIN || who == KILL_ALL)
+ if (main_pid > 0)
+ if (kill(main_pid, signo) < 0)
+ r = -errno;
+
+ if (who == KILL_ALL) {
+ _cleanup_set_free_ Set *pid_set = NULL;
+ int q;
+
+ pid_set = set_new(trivial_hash_func, trivial_compare_func);
+ if (!pid_set)
+ return -ENOMEM;
+
+ /* Exclude the control/main pid from being killed via the cgroup */
+ if (control_pid > 0) {
+ q = set_put(pid_set, LONG_TO_PTR(control_pid));
+ if (q < 0)
+ return q;
+ }
+
+ if (main_pid > 0) {
+ q = set_put(pid_set, LONG_TO_PTR(main_pid));
+ if (q < 0)
+ return q;
+ }
+
+ q = cgroup_bonding_kill_list(u->cgroup_bondings, signo, false, false, pid_set, NULL);
+ if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
+ r = q;
+ }
+
+ return r;
+}
+
int unit_following_set(Unit *u, Set **s) {
assert(u);
assert(s);
return (ExecContext*) ((uint8_t*) u + offset);
}
+static int drop_in_file(Unit *u, bool runtime, const char *name, char **_p, char **_q) {
+ char *p, *q;
+ int r;
+
+ assert(u);
+ assert(name);
+ assert(_p);
+ assert(_q);
+
+ if (u->manager->running_as == SYSTEMD_USER && runtime)
+ return -ENOTSUP;
+
+ if (!filename_is_safe(name))
+ return -EINVAL;
+
+ if (u->manager->running_as == SYSTEMD_USER) {
+ _cleanup_free_ char *c = NULL;
+
+ r = user_config_home(&c);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ p = strjoin(c, "/", u->id, ".d", NULL);
+ } else if (runtime)
+ p = strjoin("/run/systemd/system/", u->id, ".d", NULL);
+ else
+ p = strjoin("/etc/systemd/system/", u->id, ".d", NULL);
+ if (!p)
+ return -ENOMEM;
+
+ q = strjoin(p, "/50-", name, ".conf", NULL);
+ if (!q) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ *_p = p;
+ *_q = q;
+ return 0;
+}
+
+int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data) {
+ _cleanup_free_ char *p = NULL, *q = NULL;
+ int r;
+
+ assert(u);
+
+ r = drop_in_file(u, runtime, name, &p, &q);
+ if (r < 0)
+ return r;
+
+ mkdir_p(p, 0755);
+ return write_string_file_atomic_label(q, data);
+}
+
+int unit_remove_drop_in(Unit *u, bool runtime, const char *name) {
+ _cleanup_free_ char *p = NULL, *q = NULL;
+ int r;
+
+ assert(u);
+
+ r = drop_in_file(u, runtime, name, &p, &q);
+ if (unlink(q) < 0)
+ r = -errno;
+ else
+ r = 0;
+
+ rmdir(p);
+ return r;
+}
+
+int unit_kill_context(
+ Unit *u,
+ KillContext *c,
+ bool sigkill,
+ pid_t main_pid,
+ pid_t control_pid,
+ bool main_pid_alien) {
+
+ int sig, wait_for_exit = 0, r;
+
+ assert(u);
+ assert(c);
+
+ if (c->kill_mode == KILL_NONE)
+ return 0;
+
+ sig = sigkill ? SIGKILL : c->kill_signal;
+
+ if (main_pid > 0) {
+ r = kill_and_sigcont(main_pid, sig);
+
+ if (r < 0 && r != -ESRCH) {
+ _cleanup_free_ char *comm = NULL;
+ get_process_comm(main_pid, &comm);
+
+ log_warning_unit(u->id, "Failed to kill main process %li (%s): %s",
+ (long) main_pid, strna(comm), strerror(-r));
+ } else
+ wait_for_exit = !main_pid_alien;
+ }
+
+ if (control_pid > 0) {
+ r = kill_and_sigcont(control_pid, sig);
+
+ if (r < 0 && r != -ESRCH) {
+ _cleanup_free_ char *comm = NULL;
+ get_process_comm(control_pid, &comm);
+
+ log_warning_unit(u->id,
+ "Failed to kill control process %li (%s): %s",
+ (long) control_pid, strna(comm), strerror(-r));
+ } else
+ wait_for_exit = true;
+ }
+
+ if (c->kill_mode == KILL_CONTROL_GROUP) {
+ _cleanup_set_free_ Set *pid_set = NULL;
+
+ pid_set = set_new(trivial_hash_func, trivial_compare_func);
+ if (!pid_set)
+ return -ENOMEM;
+
+ /* Exclude the main/control pids from being killed via the cgroup */
+ if (main_pid > 0) {
+ r = set_put(pid_set, LONG_TO_PTR(main_pid));
+ if (r < 0)
+ return r;
+ }
+
+ if (control_pid > 0) {
+ r = set_put(pid_set, LONG_TO_PTR(control_pid));
+ if (r < 0)
+ return r;
+ }
+
+ r = cgroup_bonding_kill_list(u->cgroup_bondings, sig, true, false, pid_set, NULL);
+ if (r < 0) {
+ if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ log_warning_unit(u->id, "Failed to kill control group: %s", strerror(-r));
+ } else if (r > 0)
+ wait_for_exit = true;
+ }
+
+ return wait_for_exit;
+}
+
static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = {
[UNIT_ACTIVE] = "active",
[UNIT_RELOADING] = "reloading",
~ianmdlvl / elogind.git / blobdiff