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unit: rename OnlyByDependency= to RefuseManualStart= and introduce RefuseManualStop=

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Some unit shall never be start on user request (e.g. shutdown.target)
others never be stopped on user request (e.g. auditd.servce), hence
offer options for both.
This commit is contained in:
Lennart Poettering
2010-08-11 01:44:37 +02:00
parent 77d98d666a
commit b5e9dba8d6
15 changed files with 85 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/dbus-manager.c
+5 -2
View File
@@ -801,8 +801,11 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection,
job_type = JOB_RELOAD;
}
if (job_type == JOB_START && u->meta.only_by_dependency) {
dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Unit may be activated by dependency only.");
if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
(job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
(u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
return bus_send_error_reply(m, connection, message, &error, -EPERM);
}
src/dbus-unit.c
+27 -3
View File
@@ -147,7 +147,28 @@ int bus_unit_append_can_start(Manager *m, DBusMessageIter *i, const char *proper
assert(u);
b = unit_can_start(u) &&
!u->meta.only_by_dependency;
!u->meta.refuse_manual_start;
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
return 0;
}
int bus_unit_append_can_stop(Manager *m, DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
dbus_bool_t b;
assert(m);
assert(i);
assert(property);
assert(u);
/* On the lower levels we assume that every unit we can start
* we can also stop */
b = unit_can_start(u) &&
!u->meta.refuse_manual_stop;
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
@@ -334,8 +355,11 @@ static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusConnection *conn
Job *j;
int r;
if (job_type == JOB_START && u->meta.only_by_dependency) {
dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Unit may be activated by dependency only.");
if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
(job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
(u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
return bus_send_error_reply(m, connection, message, &error, -EPERM);
}
src/dbus-unit.h
+7 -2
View File
@@ -85,10 +85,12 @@
" <property name=\"InactiveEnterTimestamp\" type=\"t\" access=\"read\"/>\n" \
" <property name=\"CanReload\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"CanStart\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"CanStop\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"Job\" type=\"(uo)\" access=\"read\"/>\n" \
" <property name=\"RecursiveStop\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"StopWhenUneeded\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"OnlyByDependency\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"RefuseManualStart\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"RefuseManualStop\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"DefaultDependencies\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"DefaultControlGroup\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"ControlGroups\" type=\"as\" access=\"read\"/>\n" \
@@ -123,11 +125,13 @@
{ "org.freedesktop.systemd1.Unit", "ActiveExitTimestamp", bus_property_append_uint64, "t", &u->meta.active_exit_timestamp.realtime }, \
{ "org.freedesktop.systemd1.Unit", "InactiveEnterTimestamp",bus_property_append_uint64, "t", &u->meta.inactive_enter_timestamp.realtime }, \
{ "org.freedesktop.systemd1.Unit", "CanStart", bus_unit_append_can_start, "b", u }, \
{ "org.freedesktop.systemd1.Unit", "CanStop", bus_unit_append_can_stop, "b", u }, \
{ "org.freedesktop.systemd1.Unit", "CanReload", bus_unit_append_can_reload, "b", u }, \
{ "org.freedesktop.systemd1.Unit", "Job", bus_unit_append_job, "(uo)", u }, \
{ "org.freedesktop.systemd1.Unit", "RecursiveStop", bus_property_append_bool, "b", &u->meta.recursive_stop }, \
{ "org.freedesktop.systemd1.Unit", "StopWhenUneeded", bus_property_append_bool, "b", &u->meta.stop_when_unneeded }, \
{ "org.freedesktop.systemd1.Unit", "OnlyByDependency", bus_property_append_bool, "b", &u->meta.only_by_dependency }, \
{ "org.freedesktop.systemd1.Unit", "RefuseManualStart", bus_property_append_bool, "b", &u->meta.refuse_manual_start }, \
{ "org.freedesktop.systemd1.Unit", "RefuseManualStop", bus_property_append_bool, "b", &u->meta.refuse_manual_stop }, \
{ "org.freedesktop.systemd1.Unit", "DefaultDependencies", bus_property_append_bool, "b", &u->meta.default_dependencies }, \
{ "org.freedesktop.systemd1.Unit", "DefaultControlGroup", bus_unit_append_default_cgroup, "s", u }, \
{ "org.freedesktop.systemd1.Unit", "ControlGroups", bus_unit_append_cgroups, "as", u }, \
@@ -142,6 +146,7 @@ int bus_unit_append_load_state(Manager *m, DBusMessageIter *i, const char *prope
int bus_unit_append_active_state(Manager *m, DBusMessageIter *i, const char *property, void *data);
int bus_unit_append_sub_state(Manager *m, DBusMessageIter *i, const char *property, void *data);
int bus_unit_append_can_start(Manager *m, DBusMessageIter *i, const char *property, void *data);
int bus_unit_append_can_stop(Manager *m, DBusMessageIter *i, const char *property, void *data);
int bus_unit_append_can_reload(Manager *m, DBusMessageIter *i, const char *property, void *data);
int bus_unit_append_job(Manager *m, DBusMessageIter *i, const char *property, void *data);
int bus_unit_append_default_cgroup(Manager *m, DBusMessageIter *i, const char *property, void *data);
src/dbus.c
+1 -1
View File
@@ -385,7 +385,7 @@ static DBusHandlerResult api_bus_message_filter(DBusConnection *connection, DBus
r = manager_load_unit(m, name, NULL, &error, &u);
if (r >= 0 && u->meta.only_by_dependency)
if (r >= 0 && u->meta.refuse_manual_start)
r = -EPERM;
if (r >= 0)
src/load-fragment.c
+2 -1
View File
@@ -1566,7 +1566,8 @@ static int load_from_path(Unit *u, const char *path) {
{ "OnFailure", config_parse_deps, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" },
{ "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Unit" },
{ "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },
{ "OnlyByDependency", config_parse_bool, &u->meta.only_by_dependency, "Unit" },
{ "RefuseManualStart", config_parse_bool, &u->meta.refuse_manual_start, "Unit" },
{ "RefuseManualStop", config_parse_bool, &u->meta.refuse_manual_stop, "Unit" },
{ "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" },
{ "IgnoreDependencyFailure",config_parse_bool, &u->meta.ignore_dependency_failure, "Unit" },
{ "JobTimeoutSec", config_parse_usec, &u->meta.job_timeout, "Unit" },
src/unit.c
+4 -2
View File
@@ -646,12 +646,14 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
fprintf(f,
"%s\tRecursive Stop: %s\n"
"%s\tStopWhenUnneeded: %s\n"
"%s\tOnlyByDependency: %s\n"
"%s\tRefuseManualStart: %s\n"
"%s\tRefuseManualStop: %s\n"
"%s\tDefaultDependencies: %s\n"
"%s\tIgnoreDependencyFailure: %s\n",
prefix, yes_no(u->meta.recursive_stop),
prefix, yes_no(u->meta.stop_when_unneeded),
prefix, yes_no(u->meta.only_by_dependency),
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.ignore_dependency_failure));
src/unit.h
+6 -3
View File
@@ -186,15 +186,18 @@ struct Meta {
/* Garbage collect us we nobody wants or requires us anymore */
bool stop_when_unneeded;
/* Refuse manual starting, allow starting only indirectly via dependency. */
bool only_by_dependency;
/* Create default depedencies */
bool default_dependencies;
/* Bring up this unit even if a dependency fails to start */
bool ignore_dependency_failure;
/* Refuse manual starting, allow starting only indirectly via dependency. */
bool refuse_manual_start;
/* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */
bool refuse_manual_stop;
/* When deserializing, temporarily store the job type for this
* unit here, if there was a job scheduled */
int deserialized_job; /* This is actually of type JobType */