#include "special.h"
#include "cgroup-util.h"
#include "missing.h"
+#include "cgroup-attr.h"
const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = &service_vtable,
u->meta.type = _UNIT_TYPE_INVALID;
u->meta.deserialized_job = _JOB_TYPE_INVALID;
u->meta.default_dependencies = true;
+ u->meta.unit_file_state = _UNIT_FILE_STATE_INVALID;
return u;
}
if ((r = unit_name_to_instance(s, &i)) < 0)
goto fail;
- if (i && unit_vtable[t]->no_instances)
+ if (i && unit_vtable[t]->no_instances) {
+ r = -EINVAL;
goto fail;
+ }
/* Ensure that this unit is either instanced or not instanced,
* but not both. */
u->meta.id = s;
u->meta.instance = i;
- LIST_PREPEND(Meta, units_per_type, u->meta.manager->units_per_type[t], &u->meta);
+ LIST_PREPEND(Meta, units_by_type, u->meta.manager->units_by_type[t], &u->meta);
if (UNIT_VTABLE(u)->init)
UNIT_VTABLE(u)->init(u);
bidi_set_free(u, u->meta.dependencies[d]);
if (u->meta.type != _UNIT_TYPE_INVALID)
- LIST_REMOVE(Meta, units_per_type, u->meta.manager->units_per_type[u->meta.type], &u->meta);
+ LIST_REMOVE(Meta, units_by_type, u->meta.manager->units_by_type[u->meta.type], &u->meta);
if (u->meta.in_load_queue)
LIST_REMOVE(Meta, load_queue, u->meta.manager->load_queue, &u->meta);
u->meta.manager->n_in_gc_queue--;
}
- cgroup_bonding_free_list(u->meta.cgroup_bondings);
+ cgroup_bonding_free_list(u->meta.cgroup_bondings, u->meta.manager->n_reloading <= 0);
+ cgroup_attribute_free_list(u->meta.cgroup_attributes);
free(u->meta.description);
free(u->meta.fragment_path);
/* If syslog or kernel logging is requested, make sure our own
* logging daemon is run first. */
- if ((r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET, NULL, true)) < 0)
- return r;
-
if (u->meta.manager->running_as == MANAGER_SYSTEM)
- if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET, NULL, true)) < 0)
+ if ((r = unit_add_two_dependencies_by_name(u, UNIT_REQUIRES, UNIT_AFTER, SPECIAL_STDOUT_SYSLOG_BRIDGE_SOCKET, NULL, true)) < 0)
return r;
return 0;
Iterator i;
char *p2;
const char *prefix2;
- CGroupBonding *b;
char
timestamp1[FORMAT_TIMESTAMP_MAX],
timestamp2[FORMAT_TIMESTAMP_MAX],
}
if (u->meta.load_state == UNIT_LOADED) {
+ CGroupBonding *b;
+ CGroupAttribute *a;
+
fprintf(f,
"%s\tStopWhenUnneeded: %s\n"
"%s\tRefuseManualStart: %s\n"
"%s\tRefuseManualStop: %s\n"
- "%s\tDefaultDependencies: %s\n",
+ "%s\tDefaultDependencies: %s\n"
+ "%s\tOnFailureIsolate: %s\n"
+ "%s\tIgnoreOnIsolate: %s\n"
+ "%s\tIgnoreOnSnapshot: %s\n",
prefix, yes_no(u->meta.stop_when_unneeded),
prefix, yes_no(u->meta.refuse_manual_start),
prefix, yes_no(u->meta.refuse_manual_stop),
- prefix, yes_no(u->meta.default_dependencies));
+ prefix, yes_no(u->meta.default_dependencies),
+ prefix, yes_no(u->meta.on_failure_isolate),
+ prefix, yes_no(u->meta.ignore_on_isolate),
+ prefix, yes_no(u->meta.ignore_on_snapshot));
LIST_FOREACH(by_unit, b, u->meta.cgroup_bondings)
fprintf(f, "%s\tControlGroup: %s:%s\n",
prefix, b->controller, b->path);
+ LIST_FOREACH(by_unit, a, u->meta.cgroup_attributes) {
+ char *v = NULL;
+
+ if (a->map_callback)
+ a->map_callback(a->controller, a->name, 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)
UNIT_VTABLE(u)->dump(u, f, prefix2);
if ((r = unit_add_default_dependencies(u)) < 0)
goto fail;
+ if (u->meta.on_failure_isolate &&
+ set_size(u->meta.dependencies[UNIT_ON_FAILURE]) > 1) {
+
+ log_error("More than one OnFailure= dependencies specified for %s but OnFailureIsolate= enabled. Refusing.",
+ u->meta.id);
+
+ r = -EINVAL;
+ goto fail;
+ }
+
assert((u->meta.load_state != UNIT_MERGED) == !u->meta.merged_into);
unit_add_to_dbus_queue(unit_follow_merge(u));
assert(u);
- SET_FOREACH(other, u->meta.dependencies[UNIT_ON_FAILURE], i)
- manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL);
+ if (set_size(u->meta.dependencies[UNIT_ON_FAILURE]) <= 0)
+ return;
+
+ log_info("Triggering OnFailure= dependencies of %s.", u->meta.id);
+
+ SET_FOREACH(other, u->meta.dependencies[UNIT_ON_FAILURE], i) {
+ int r;
+
+ if ((r = manager_add_job(u->meta.manager, JOB_START, other, u->meta.on_failure_isolate ? JOB_ISOLATE : JOB_REPLACE, true, NULL, NULL)) < 0)
+ log_error("Failed to enqueue OnFailure= job: %s", strerror(-r));
+ }
}
void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success) {
* behaviour here. For example: if a mount point is remounted
* this function will be called too! */
- if (u->meta.manager->n_deserializing <= 0) {
+ if (u->meta.manager->n_reloading <= 0) {
dual_timestamp ts;
dual_timestamp_get(&ts);
} else
unexpected = true;
- if (u->meta.manager->n_deserializing <= 0) {
+ if (u->meta.manager->n_reloading <= 0) {
/* If this state change happened without being
* requested by a job, then let's retroactively start
log_notice("Unit %s entered failed state.", u->meta.id);
unit_trigger_on_failure(u);
}
+ }
+ /* Some names are special */
+ if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
+
+ if (unit_has_name(u, SPECIAL_DBUS_SERVICE))
+ /* The bus just might have become available,
+ * hence try to connect to it, if we aren't
+ * yet connected. */
+ bus_init(u->meta.manager, true);
+
+ if (u->meta.type == UNIT_SERVICE &&
+ !UNIT_IS_ACTIVE_OR_RELOADING(os) &&
+ u->meta.manager->n_reloading <= 0) {
+ /* Write audit record if we have just finished starting up */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, true);
+ u->meta.in_audit = true;
+ }
- /* Some names are special */
- if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
-
- if (unit_has_name(u, SPECIAL_DBUS_SERVICE))
- /* The bus just might have become available,
- * hence try to connect to it, if we aren't
- * yet connected. */
- bus_init(u->meta.manager, true);
-
- if (u->meta.type == UNIT_SERVICE &&
- !UNIT_IS_ACTIVE_OR_RELOADING(os)) {
- /* Write audit record if we have just finished starting up */
- manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, true);
- u->meta.in_audit = true;
- }
-
- if (!UNIT_IS_ACTIVE_OR_RELOADING(os))
- manager_send_unit_plymouth(u->meta.manager, u);
+ if (!UNIT_IS_ACTIVE_OR_RELOADING(os))
+ manager_send_unit_plymouth(u->meta.manager, u);
- } else {
+ } else {
- /* We don't care about D-Bus here, since we'll get an
- * asynchronous notification for it anyway. */
+ /* We don't care about D-Bus here, since we'll get an
+ * asynchronous notification for it anyway. */
- if (u->meta.type == UNIT_SERVICE &&
- UNIT_IS_INACTIVE_OR_FAILED(ns) &&
- !UNIT_IS_INACTIVE_OR_FAILED(os)) {
+ if (u->meta.type == UNIT_SERVICE &&
+ UNIT_IS_INACTIVE_OR_FAILED(ns) &&
+ !UNIT_IS_INACTIVE_OR_FAILED(os) &&
+ u->meta.manager->n_reloading <= 0) {
- /* Hmm, if there was no start record written
- * write it now, so that we always have a nice
- * pair */
- if (!u->meta.in_audit) {
- manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE);
+ /* Hmm, if there was no start record written
+ * write it now, so that we always have a nice
+ * pair */
+ if (!u->meta.in_audit) {
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE);
- if (ns == UNIT_INACTIVE)
- manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, true);
- } else
- /* Write audit record if we have just finished shutting down */
- manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
+ if (ns == UNIT_INACTIVE)
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, true);
+ } else
+ /* Write audit record if we have just finished shutting down */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
- u->meta.in_audit = false;
- }
+ u->meta.in_audit = false;
}
-
- manager_recheck_syslog(u->meta.manager);
}
+ manager_recheck_syslog(u->meta.manager);
+
/* Maybe we finished startup and are now ready for being
* stopped because unneeded? */
unit_check_unneeded(u);
assert(b->path);
- if (!b->controller)
+ if (!b->controller) {
if (!(b->controller = strdup(SYSTEMD_CGROUP_CONTROLLER)))
return -ENOMEM;
+ b->ours = true;
+ }
+
/* Ensure this hasn't been added yet */
assert(!b->unit);
static char *default_cgroup_path(Unit *u) {
char *p;
- int r;
assert(u);
if (u->meta.instance) {
char *t;
- if (!(t = unit_name_template(u->meta.id)))
+ t = unit_name_template(u->meta.id);
+ if (!t)
return NULL;
- r = asprintf(&p, "%s/%s/%s", u->meta.manager->cgroup_hierarchy, t, u->meta.instance);
+ p = join(u->meta.manager->cgroup_hierarchy, "/", t, "/", u->meta.instance, NULL);
free(t);
} else
- r = asprintf(&p, "%s/%s", u->meta.manager->cgroup_hierarchy, u->meta.id);
+ p = join(u->meta.manager->cgroup_hierarchy, "/", u->meta.id, NULL);
- return r < 0 ? NULL : p;
+ return p;
}
int unit_add_cgroup_from_text(Unit *u, const char *name) {
char *controller = NULL, *path = NULL;
CGroupBonding *b = NULL;
+ bool ours = false;
int r;
assert(u);
if ((r = cg_split_spec(name, &controller, &path)) < 0)
return r;
- if (!path)
+ if (!path) {
path = default_cgroup_path(u);
+ ours = true;
+ }
- if (!controller)
+ if (!controller) {
controller = strdup(SYSTEMD_CGROUP_CONTROLLER);
+ ours = true;
+ }
if (!path || !controller) {
free(path);
b->controller = controller;
b->path = path;
- b->ours = false;
+ b->ours = ours;
+ b->essential = streq(controller, SYSTEMD_CGROUP_CONTROLLER);
if ((r = unit_add_cgroup(u, b)) < 0)
goto fail;
}
int unit_add_default_cgroups(Unit *u) {
+ CGroupAttribute *a;
char **c;
int r;
+
assert(u);
/* Adds in the default cgroups, if they weren't specified
* otherwise. */
+ if (!u->meta.manager->cgroup_hierarchy)
+ return 0;
+
if ((r = unit_add_one_default_cgroup(u, NULL)) < 0)
return r;
STRV_FOREACH(c, u->meta.manager->default_controllers)
- if ((r = unit_add_one_default_cgroup(u, *c)) < 0)
- return r;
+ unit_add_one_default_cgroup(u, *c);
+
+ LIST_FOREACH(by_unit, a, u->meta.cgroup_attributes)
+ unit_add_one_default_cgroup(u, a->controller);
return 0;
}
return cgroup_bonding_find_list(u->meta.cgroup_bondings, SYSTEMD_CGROUP_CONTROLLER);
}
+int unit_add_cgroup_attribute(Unit *u, const char *controller, const char *name, const char *value, CGroupAttributeMapCallback map_callback) {
+ int r;
+ char *c = NULL;
+ CGroupAttribute *a;
+
+ assert(u);
+ assert(name);
+ assert(value);
+
+ if (!controller) {
+ const char *dot;
+
+ dot = strchr(name, '.');
+ if (!dot)
+ return -EINVAL;
+
+ c = strndup(name, dot - name);
+ if (!c)
+ return -ENOMEM;
+
+ controller = c;
+ }
+
+ if (streq(controller, SYSTEMD_CGROUP_CONTROLLER)) {
+ r = -EINVAL;
+ goto finish;
+ }
+
+ a = new0(CGroupAttribute, 1);
+ if (!a) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (c) {
+ a->controller = c;
+ c = NULL;
+ } else
+ a->controller = strdup(controller);
+
+ a->name = strdup(name);
+ a->value = strdup(value);
+
+ if (!a->controller || !a->name || !a->value) {
+ free(a->controller);
+ free(a->name);
+ free(a->value);
+ free(a);
+
+ return -ENOMEM;
+ }
+
+ a->map_callback = map_callback;
+
+ LIST_PREPEND(CGroupAttribute, by_unit, u->meta.cgroup_attributes, a);
+
+ r = 0;
+
+finish:
+ free(c);
+ return r;
+}
+
int unit_load_related_unit(Unit *u, const char *type, Unit **_found) {
char *t;
int r;
return unit_name_to_path(u->meta.instance);
}
+static char *specifier_cgroup(char specifier, void *data, void *userdata) {
+ Unit *u = userdata;
+ assert(u);
+
+ return default_cgroup_path(u);
+}
+
+static char *specifier_cgroup_root(char specifier, void *data, void *userdata) {
+ Unit *u = userdata;
+ char *p;
+ assert(u);
+
+ if (specifier == 'r')
+ return strdup(u->meta.manager->cgroup_hierarchy);
+
+ if (parent_of_path(u->meta.manager->cgroup_hierarchy, &p) < 0)
+ return strdup("");
+
+ if (streq(p, "/")) {
+ free(p);
+ return strdup("");
+ }
+
+ return p;
+}
+
+static char *specifier_runtime(char specifier, void *data, void *userdata) {
+ Unit *u = userdata;
+ assert(u);
+
+ if (u->meta.manager->running_as == MANAGER_USER) {
+ const char *e;
+
+ e = getenv("XDG_RUNTIME_DIR");
+ if (e)
+ return strdup(e);
+ }
+
+ return strdup("/run");
+}
+
char *unit_name_printf(Unit *u, const char* format) {
/*
char *unit_full_printf(Unit *u, const char *format) {
/* This is similar to unit_name_printf() but also supports
- * unescaping */
+ * unescaping. Also, adds a couple of additional codes:
+ *
+ * %c cgroup path of unit
+ * %r root cgroup path of this systemd instance (e.g. "/user/lennart/shared/systemd-4711")
+ * %R parent of root cgroup path (e.g. "/usr/lennart/shared")
+ * %t the runtime directory to place sockets in (e.g. "/run" or $XDG_RUNTIME_DIR)
+ */
const Specifier table[] = {
{ 'n', specifier_string, u->meta.id },
{ 'i', specifier_string, u->meta.instance },
{ 'I', specifier_instance_unescaped, NULL },
{ 'f', specifier_filename, NULL },
+ { 'c', specifier_cgroup, NULL },
+ { 'r', specifier_cgroup_root, NULL },
+ { 'R', specifier_cgroup_root, NULL },
+ { 't', specifier_runtime, NULL },
{ 0, NULL, NULL }
};
return r;
fail:
- j--;
- while (j >= r)
+ for (j--; j >= r; j--)
free(*j);
free(r);
return 0;
for (;;) {
- char line[1024], *l, *v;
+ char line[LINE_MAX], *l, *v;
size_t k;
if (!fgets(line, sizeof(line), f)) {
return r;
if (u->meta.deserialized_job >= 0) {
- if ((r = manager_add_job(u->meta.manager, u->meta.deserialized_job, u, JOB_IGNORE_DEPENDENCIES, false, NULL, NULL)) < 0)
+ if ((r = manager_add_job(u->meta.manager, u->meta.deserialized_job, u, JOB_IGNORE_REQUIREMENTS, false, NULL, NULL)) < 0)
return r;
u->meta.deserialized_job = _JOB_TYPE_INVALID;
if (!UNIT_VTABLE(u)->show_status)
return;
- if (u->meta.manager->running_as != MANAGER_SYSTEM)
- return;
-
- /* If Plymouth is running make sure we show the status, so
- * that there's something nice to see when people press Esc */
-
- if (!u->meta.manager->show_status && !plymouth_running())
+ if (!manager_get_show_status(u->meta.manager))
return;
if (!manager_is_booting_or_shutting_down(u->meta.manager))
}
bool unit_need_daemon_reload(Unit *u) {
- struct stat st;
-
assert(u);
- if (!u->meta.fragment_path)
- return false;
+ if (u->meta.fragment_path) {
+ struct stat st;
- zero(st);
- if (stat(u->meta.fragment_path, &st) < 0)
- /* What, cannot access this anymore? */
- return true;
+ zero(st);
+ if (stat(u->meta.fragment_path, &st) < 0)
+ /* What, cannot access this anymore? */
+ return true;
+
+ if (u->meta.fragment_mtime > 0 &&
+ timespec_load(&st.st_mtim) != u->meta.fragment_mtime)
+ return true;
+ }
+
+ if (UNIT_VTABLE(u)->need_daemon_reload)
+ return UNIT_VTABLE(u)->need_daemon_reload(u);
- return
- u->meta.fragment_mtime &&
- timespec_load(&st.st_mtim) != u->meta.fragment_mtime;
+ return false;
}
void unit_reset_failed(Unit *u) {
return UNIT_VTABLE(u)->kill(u, w, m, signo, error);
}
-
int unit_following_set(Unit *u, Set **s) {
assert(u);
assert(s);
return 0;
}
+UnitFileState unit_get_unit_file_state(Unit *u) {
+ assert(u);
+
+ if (u->meta.unit_file_state < 0 && u->meta.fragment_path)
+ u->meta.unit_file_state = unit_file_get_state(
+ u->meta.manager->running_as == MANAGER_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER,
+ NULL, file_name_from_path(u->meta.fragment_path));
+
+ return u->meta.unit_file_state;
+}
+
static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = {
[UNIT_STUB] = "stub",
[UNIT_LOADED] = "loaded",
~ianmdlvl / elogind.git / blobdiff