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-rw-r--r--src/core/dbus-cgroup.c3
-rw-r--r--src/core/dbus-manager.c69
-rw-r--r--src/core/dbus-service.c128
-rw-r--r--src/core/dbus-unit.c18
-rw-r--r--src/core/dbus-unit.h3
-rw-r--r--src/core/job.c7
-rw-r--r--src/core/load-fragment.c4
-rw-r--r--src/core/main.c4
-rw-r--r--src/core/manager.c16
-rw-r--r--src/core/mount.c2
-rw-r--r--src/core/service.c25
-rw-r--r--src/core/transaction.c3
-rw-r--r--src/core/unit.c143
-rw-r--r--src/core/unit.h8
14 files changed, 382 insertions, 51 deletions
diff --git a/src/core/dbus-cgroup.c b/src/core/dbus-cgroup.c
index cf05f04ea..d1d35633c 100644
--- a/src/core/dbus-cgroup.c
+++ b/src/core/dbus-cgroup.c
@@ -323,8 +323,6 @@ int bus_cgroup_set_property(
return -EINVAL;
}
- n++;
-
if (mode != UNIT_CHECK) {
a = new0(CGroupDeviceAllow, 1);
if (!a)
@@ -343,6 +341,7 @@ int bus_cgroup_set_property(
LIST_PREPEND(CGroupDeviceAllow, device_allow, c->device_allow, a);
}
+ n++;
dbus_message_iter_next(&sub);
}
diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c
index c51226590..fe2f74980 100644
--- a/src/core/dbus-manager.c
+++ b/src/core/dbus-manager.c
@@ -239,6 +239,13 @@
" <arg name=\"name\" type=\"s\" direction=\"out\"/>\n" \
" <arg name=\"runtime\" type=\"b\" direction=\"in\"/>\n" \
" <arg name=\"properties\" type=\"a(sv)\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"StartTransientUnit\">\n" \
+ " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"properties\" type=\"a(sv)\" direction=\"in\"/>\n" \
+ " <arg name=\"aux\" type=\"a(sa(sv))\" direction=\"in\"/>\n" \
+ " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
" </method>\n"
#define BUS_MANAGER_INTERFACE_SIGNALS \
@@ -1758,7 +1765,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection,
SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "start");
- r = bus_unit_set_properties(u, &iter, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, &error);
+ r = bus_unit_set_properties(u, &iter, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, &error);
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
@@ -1766,6 +1773,66 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection,
if (!reply)
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartTransientUnit")) {
+ const char *name, *smode;
+ DBusMessageIter iter;
+ JobMode mode;
+ UnitType t;
+ Unit *u;
+
+ if (!dbus_message_iter_init(message, &iter))
+ goto oom;
+
+ if (bus_iter_get_basic_and_next(&iter, DBUS_TYPE_STRING, &name, true) < 0 ||
+ bus_iter_get_basic_and_next(&iter, DBUS_TYPE_STRING, &smode, true) < 0)
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ t = unit_name_to_type(name);
+ if (t < 0)
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+ if (!unit_vtable[t]->can_transient) {
+ dbus_set_error(&error, DBUS_ERROR_INVALID_ARGS, "Unit type %s does not support transient units.", unit_type_to_string(t));
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+ }
+
+ mode = job_mode_from_string(smode);
+ if (mode < 0) {
+ dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+ }
+
+ r = manager_load_unit(m, name, NULL, NULL, &u);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "start");
+
+ if (u->load_state != UNIT_NOT_FOUND || set_size(u->dependencies[UNIT_REFERENCED_BY]) > 0) {
+ dbus_set_error(&error, BUS_ERROR_UNIT_EXISTS, "Unit %s already exists.", name);
+ return bus_send_error_reply(connection, message, &error, -EEXIST);
+ }
+
+ /* OK, the unit failed to load and is unreferenced,
+ * now let's fill in the transient data instead */
+ r = unit_make_transient(u);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ /* Set our properties */
+ r = bus_unit_set_properties(u, &iter, UNIT_RUNTIME, false, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ /* And load this stub fully */
+ r = unit_load(u);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ manager_dispatch_load_queue(m);
+
+ /* Finally, start it */
+ return bus_unit_queue_job(connection, message, u, JOB_START, mode, false);
+
} else {
const BusBoundProperties bps[] = {
{ "org.freedesktop.systemd1.Manager", bus_systemd_properties, systemd_property_string },
diff --git a/src/core/dbus-service.c b/src/core/dbus-service.c
index 867ef7e54..c2031c3bf 100644
--- a/src/core/dbus-service.c
+++ b/src/core/dbus-service.c
@@ -21,6 +21,8 @@
#include <errno.h>
+#include "strv.h"
+#include "path-util.h"
#include "dbus-unit.h"
#include "dbus-execute.h"
#include "dbus-kill.h"
@@ -162,6 +164,124 @@ DBusHandlerResult bus_service_message_handler(Unit *u, DBusConnection *connectio
return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
}
+static int bus_service_set_transient_properties(
+ Service *s,
+ const char *name,
+ DBusMessageIter *i,
+ UnitSetPropertiesMode mode,
+ DBusError *error) {
+
+ int r;
+
+ assert(name);
+ assert(s);
+ assert(i);
+
+ if (streq(name, "ExecStart")) {
+ DBusMessageIter sub;
+ unsigned n = 0;
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(i) != DBUS_TYPE_STRUCT)
+ return -EINVAL;
+
+ dbus_message_iter_recurse(i, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ _cleanup_strv_free_ char **argv = NULL;
+ DBusMessageIter sub2;
+ dbus_bool_t ignore;
+ const char *path;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
+ return -EINVAL;
+
+ if (!path_is_absolute(path)) {
+ dbus_set_error(error, DBUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
+ return -EINVAL;
+ }
+
+ r = bus_parse_strv_iter(&sub2, &argv);
+ if (r < 0)
+ return r;
+
+ dbus_message_iter_next(&sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) < 0)
+ return -EINVAL;
+
+ if (mode != UNIT_CHECK) {
+ ExecCommand *c;
+
+ c = new0(ExecCommand, 1);
+ if (!c)
+ return -ENOMEM;
+
+ c->path = strdup(path);
+ if (!c->path) {
+ free(c);
+ return -ENOMEM;
+ }
+
+ c->argv = argv;
+ argv = NULL;
+
+ c->ignore = ignore;
+
+ path_kill_slashes(c->path);
+ exec_command_append_list(&s->exec_command[SERVICE_EXEC_START], c);
+ }
+
+ n++;
+ dbus_message_iter_next(&sub);
+ }
+
+ if (mode != UNIT_CHECK) {
+ _cleanup_free_ char *buf = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ ExecCommand *c;
+ size_t size = 0;
+
+ if (n == 0) {
+ exec_command_free_list(s->exec_command[SERVICE_EXEC_START]);
+ s->exec_command[SERVICE_EXEC_START] = NULL;
+ }
+
+ f = open_memstream(&buf, &size);
+ if (!f)
+ return -ENOMEM;
+
+ fputs("ExecStart=\n", f);
+
+ LIST_FOREACH(command, c, s->exec_command[SERVICE_EXEC_START]) {
+ char **a;
+ fputs("ExecStart=", f);
+
+ if (c->ignore)
+ fputc('-', f);
+
+ fputc('@', f);
+ fputs(c->path, f);
+
+ STRV_FOREACH(a, c->argv) {
+ fputc(' ', f);
+ fputs(*a, f);
+ }
+
+ fputc('\n', f);
+ }
+
+ fflush(f);
+ unit_write_drop_in_private_section(UNIT(s), mode, "exec-start", buf);
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
int bus_service_set_property(
Unit *u,
const char *name,
@@ -180,6 +300,14 @@ int bus_service_set_property(
if (r != 0)
return r;
+ if (u->transient && u->load_state == UNIT_STUB) {
+ /* This is a transient unit, let's load a little more */
+
+ r = bus_service_set_transient_properties(s, name, i, mode, error);
+ if (r != 0)
+ return r;
+ }
+
return 0;
}
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index b3724b679..f51850575 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -415,7 +415,7 @@ static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusConnection *conn
SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "start");
- r = bus_unit_set_properties(u, &iter, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, &error);
+ r = bus_unit_set_properties(u, &iter, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, &error);
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
@@ -716,7 +716,7 @@ DBusHandlerResult bus_unit_queue_job(
(type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" :
type == JOB_STOP ? "stop" : "reload");
- if (type == JOB_STOP && u->load_state == UNIT_ERROR && unit_active_state(u) == UNIT_INACTIVE) {
+ if (type == JOB_STOP && (u->load_state == UNIT_NOT_FOUND || u->load_state == UNIT_ERROR) && unit_active_state(u) == UNIT_INACTIVE) {
dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
return bus_send_error_reply(connection, message, &error, -EPERM);
}
@@ -764,7 +764,13 @@ oom:
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
-int bus_unit_set_properties(Unit *u, DBusMessageIter *iter, UnitSetPropertiesMode mode, DBusError *error) {
+int bus_unit_set_properties(
+ Unit *u,
+ DBusMessageIter *iter,
+ UnitSetPropertiesMode mode,
+ bool commit,
+ DBusError *error) {
+
bool for_real = false;
DBusMessageIter sub;
unsigned n = 0;
@@ -773,6 +779,9 @@ int bus_unit_set_properties(Unit *u, DBusMessageIter *iter, UnitSetPropertiesMod
assert(u);
assert(iter);
+ if (u->transient)
+ mode &= UNIT_RUNTIME;
+
/* We iterate through the array twice. First run we just check
* if all passed data is valid, second run actually applies
* it. This is to implement transaction-like behaviour without
@@ -826,7 +835,7 @@ int bus_unit_set_properties(Unit *u, DBusMessageIter *iter, UnitSetPropertiesMod
n += for_real;
}
- if (n > 0 && UNIT_VTABLE(u)->bus_commit_properties)
+ if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties)
UNIT_VTABLE(u)->bus_commit_properties(u);
return n;
@@ -896,5 +905,6 @@ const BusProperty bus_unit_properties[] = {
{ "ConditionResult", bus_property_append_bool, "b", offsetof(Unit, condition_result) },
{ "LoadError", bus_unit_append_load_error, "(ss)", 0 },
{ "ControlGroup", bus_property_append_string, "s", offsetof(Unit, cgroup_path), true },
+ { "Transient", bus_property_append_bool, "b", offsetof(Unit, transient) },
{ NULL, }
};
diff --git a/src/core/dbus-unit.h b/src/core/dbus-unit.h
index 1b42757b4..18f7c4f08 100644
--- a/src/core/dbus-unit.h
+++ b/src/core/dbus-unit.h
@@ -128,6 +128,7 @@
" <property name=\"ConditionResult\" type=\"b\" access=\"read\"/>\n" \
" <property name=\"LoadError\" type=\"(ss)\" access=\"read\"/>\n" \
" <property name=\"ControlGroup\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Transient\" type=\"b\" access=\"read\"/>\n" \
" </interface>\n"
#define BUS_UNIT_INTERFACES_LIST \
@@ -141,7 +142,7 @@ void bus_unit_send_removed_signal(Unit *u);
DBusHandlerResult bus_unit_queue_job(DBusConnection *connection, DBusMessage *message, Unit *u, JobType type, JobMode mode, bool reload_if_possible);
-int bus_unit_set_properties(Unit *u, DBusMessageIter *i, UnitSetPropertiesMode mode, DBusError *error);
+int bus_unit_set_properties(Unit *u, DBusMessageIter *i, UnitSetPropertiesMode mode, bool commit, DBusError *error);
extern const DBusObjectPathVTable bus_unit_vtable;
diff --git a/src/core/job.c b/src/core/job.c
index d304a16d0..85f77e8f0 100644
--- a/src/core/job.c
+++ b/src/core/job.c
@@ -1088,10 +1088,13 @@ void job_shutdown_magic(Job *j) {
* asynchronous sync() would cause their exit to be
* delayed. */
- if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET))
+ if (j->type != JOB_START)
return;
- if (j->type != JOB_START)
+ if (j->unit->manager->running_as != SYSTEMD_SYSTEM)
+ return;
+
+ if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET))
return;
if (detect_container(NULL) > 0)
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 57c8156fd..2b10d72ab 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -2439,14 +2439,14 @@ static int load_from_path(Unit *u, const char *path) {
if (null_or_empty(&st))
u->load_state = UNIT_MASKED;
else {
+ u->load_state = UNIT_LOADED;
+
/* Now, parse the file contents */
r = config_parse(u->id, filename, f, UNIT_VTABLE(u)->sections,
config_item_perf_lookup,
(void*) load_fragment_gperf_lookup, false, true, u);
if (r < 0)
goto finish;
-
- u->load_state = UNIT_LOADED;
}
free(u->fragment_path);
diff --git a/src/core/main.c b/src/core/main.c
index 3c6fccf52..102cc3b31 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1666,7 +1666,7 @@ int main(int argc, char *argv[]) {
if (r < 0) {
log_error("Failed to load default target: %s", bus_error(&error, r));
dbus_error_free(&error);
- } else if (target->load_state == UNIT_ERROR)
+ } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND)
log_error("Failed to load default target: %s", strerror(-target->load_error));
else if (target->load_state == UNIT_MASKED)
log_error("Default target masked.");
@@ -1679,7 +1679,7 @@ int main(int argc, char *argv[]) {
log_error("Failed to load rescue target: %s", bus_error(&error, r));
dbus_error_free(&error);
goto finish;
- } else if (target->load_state == UNIT_ERROR) {
+ } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_ERROR) {
log_error("Failed to load rescue target: %s", strerror(-target->load_error));
goto finish;
} else if (target->load_state == UNIT_MASKED) {
diff --git a/src/core/manager.c b/src/core/manager.c
index 6ba51a411..42c9bcd48 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -993,7 +993,13 @@ unsigned manager_dispatch_load_queue(Manager *m) {
return n;
}
-int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) {
+int manager_load_unit_prepare(
+ Manager *m,
+ const char *name,
+ const char *path,
+ DBusError *e,
+ Unit **_ret) {
+
Unit *ret;
UnitType t;
int r;
@@ -1053,7 +1059,13 @@ int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DB
return 0;
}
-int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) {
+int manager_load_unit(
+ Manager *m,
+ const char *name,
+ const char *path,
+ DBusError *e,
+ Unit **_ret) {
+
int r;
assert(m);
diff --git a/src/core/mount.c b/src/core/mount.c
index c1af903b1..3cc3e65b2 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1562,7 +1562,7 @@ static int mount_add_one(
}
}
- if (u->load_state == UNIT_ERROR) {
+ if (u->load_state == UNIT_NOT_FOUND) {
u->load_state = UNIT_LOADED;
u->load_error = 0;
diff --git a/src/core/service.c b/src/core/service.c
index 1dcd5cf44..6f18cbf75 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -983,7 +983,7 @@ static int service_load_sysv_name(Service *s, const char *name) {
assert(s);
assert(name);
- /* For SysV services we strip the *.sh suffixes. */
+ /* For SysV services we strip the *.sh suffixes. */
if (endswith(name, ".sh.service"))
return -ENOENT;
@@ -1193,27 +1193,32 @@ static int service_load(Unit *u) {
assert(s);
/* Load a .service file */
- if ((r = unit_load_fragment(u)) < 0)
+ r = unit_load_fragment(u);
+ if (r < 0)
return r;
#ifdef HAVE_SYSV_COMPAT
/* Load a classic init script as a fallback, if we couldn't find anything */
- if (u->load_state == UNIT_STUB)
- if ((r = service_load_sysv(s)) < 0)
+ if (u->load_state == UNIT_STUB) {
+ r = service_load_sysv(s);
+ if (r < 0)
return r;
+ }
#endif
/* Still nothing found? Then let's give up */
if (u->load_state == UNIT_STUB)
return -ENOENT;
- /* We were able to load something, then let's add in the
- * dropin directories. */
- if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
- return r;
-
/* This is a new unit? Then let's add in some extras */
if (u->load_state == UNIT_LOADED) {
+
+ /* We were able to load something, then let's add in
+ * the dropin directories. */
+ r = unit_load_dropin(u);
+ if (r < 0)
+ return r;
+
if (s->type == _SERVICE_TYPE_INVALID)
s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
@@ -3886,6 +3891,8 @@ const UnitVTable service_vtable = {
.bus_set_property = bus_service_set_property,
.bus_commit_properties = bus_service_commit_properties,
+ .can_transient = true,
+
#ifdef HAVE_SYSV_COMPAT
.enumerate = service_enumerate,
#endif
diff --git a/src/core/transaction.c b/src/core/transaction.c
index fa97b6975..5259a5b7c 100644
--- a/src/core/transaction.c
+++ b/src/core/transaction.c
@@ -851,12 +851,13 @@ int transaction_add_job_and_dependencies(
if (unit->load_state != UNIT_LOADED &&
unit->load_state != UNIT_ERROR &&
+ unit->load_state != UNIT_NOT_FOUND &&
unit->load_state != UNIT_MASKED) {
dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s is not loaded properly.", unit->id);
return -EINVAL;
}
- if (type != JOB_STOP && unit->load_state == UNIT_ERROR) {
+ if (type != JOB_STOP && (unit->load_state == UNIT_ERROR || unit->load_state == UNIT_NOT_FOUND)) {
dbus_set_error(e, BUS_ERROR_LOAD_FAILED,
"Unit %s failed to load: %s. "
"See system logs and 'systemctl status %s' for details.",
diff --git a/src/core/unit.c b/src/core/unit.c
index afeb15c15..c6c9c1865 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -348,6 +348,29 @@ static void bidi_set_free(Unit *u, Set *s) {
set_free(s);
}
+static void unit_remove_transient(Unit *u) {
+ char **i;
+
+ assert(u);
+
+ if (!u->transient)
+ return;
+
+ if (u->fragment_path)
+ unlink(u->fragment_path);
+
+ STRV_FOREACH(i, u->dropin_paths) {
+ _cleanup_free_ char *p = NULL;
+ int r;
+
+ unlink(*i);
+
+ r = path_get_parent(*i, &p);
+ if (r >= 0)
+ rmdir(p);
+ }
+}
+
void unit_free(Unit *u) {
UnitDependency d;
Iterator i;
@@ -355,6 +378,9 @@ void unit_free(Unit *u) {
assert(u);
+ if (u->manager->n_reloading <= 0)
+ unit_remove_transient(u);
+
bus_unit_send_removed_signal(u);
if (u->load_state != UNIT_STUB)
@@ -524,7 +550,7 @@ int unit_merge(Unit *u, Unit *other) {
return -EINVAL;
if (other->load_state != UNIT_STUB &&
- other->load_state != UNIT_ERROR)
+ other->load_state != UNIT_NOT_FOUND)
return -EEXIST;
if (other->job)
@@ -580,7 +606,8 @@ int unit_merge_by_name(Unit *u, const char *name) {
name = s;
}
- if (!(other = manager_get_unit(u->manager, name)))
+ other = manager_get_unit(u->manager, name);
+ if (!other)
r = unit_add_name(u, name);
else
r = unit_merge(u, other);
@@ -673,6 +700,7 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
"%s\tInactive Enter Timestamp: %s\n"
"%s\tGC Check Good: %s\n"
"%s\tNeed Daemon Reload: %s\n"
+ "%s\tTransient: %s\n"
"%s\tSlice: %s\n"
"%s\tCGroup: %s\n"
"%s\tCGroup realized: %s\n"
@@ -688,6 +716,7 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
prefix, strna(format_timestamp(timestamp4, sizeof(timestamp4), u->inactive_enter_timestamp.realtime)),
prefix, yes_no(unit_check_gc(u)),
prefix, yes_no(unit_need_daemon_reload(u)),
+ prefix, yes_no(u->transient),
prefix, strna(unit_slice_name(u)),
prefix, strna(u->cgroup_path),
prefix, yes_no(u->cgroup_realized),
@@ -903,34 +932,38 @@ int unit_load(Unit *u) {
if (u->load_state != UNIT_STUB)
return 0;
- if (UNIT_VTABLE(u)->load)
- if ((r = UNIT_VTABLE(u)->load(u)) < 0)
+ if (UNIT_VTABLE(u)->load) {
+ r = UNIT_VTABLE(u)->load(u);
+ if (r < 0)
goto fail;
+ }
if (u->load_state == UNIT_STUB) {
r = -ENOENT;
goto fail;
}
- if (u->load_state == UNIT_LOADED &&
- u->default_dependencies)
- if ((r = unit_add_default_dependencies(u)) < 0)
- goto fail;
-
if (u->load_state == UNIT_LOADED) {
+
+ if (u->default_dependencies) {
+ r = unit_add_default_dependencies(u);
+ if (r < 0)
+ goto fail;
+ }
+
r = unit_add_mount_links(u);
if (r < 0)
- return r;
- }
+ goto fail;
- if (u->on_failure_isolate &&
- set_size(u->dependencies[UNIT_ON_FAILURE]) > 1) {
+ if (u->on_failure_isolate &&
+ set_size(u->dependencies[UNIT_ON_FAILURE]) > 1) {
- log_error_unit(u->id,
- "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;
+ r = -EINVAL;
+ goto fail;
+ }
}
assert((u->load_state != UNIT_MERGED) == !u->merged_into);
@@ -941,7 +974,7 @@ int unit_load(Unit *u) {
return 0;
fail:
- u->load_state = UNIT_ERROR;
+ u->load_state = u->load_state == UNIT_STUB ? UNIT_NOT_FOUND : UNIT_ERROR;
u->load_error = r;
unit_add_to_dbus_queue(u);
unit_add_to_gc_queue(u);
@@ -2117,6 +2150,11 @@ int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs) {
if (dual_timestamp_is_set(&u->condition_timestamp))
unit_serialize_item(u, f, "condition-result", yes_no(u->condition_result));
+ unit_serialize_item(u, f, "transient", yes_no(u->transient));
+
+ if (u->cgroup_path)
+ unit_serialize_item(u, f, "cgroup", u->cgroup_path);
+
/* End marker */
fputc('\n', f);
return 0;
@@ -2239,15 +2277,38 @@ int unit_deserialize(Unit *u, FILE *f, FDSet *fds) {
} else if (streq(l, "condition-result")) {
int b;
- if ((b = parse_boolean(v)) < 0)
+ b = parse_boolean(v);
+ if (b < 0)
log_debug("Failed to parse condition result value %s", v);
else
u->condition_result = b;
continue;
+
+ } else if (streq(l, "transient")) {
+ int b;
+
+ b = parse_boolean(v);
+ if (b < 0)
+ log_debug("Failed to parse transient bool %s", v);
+ else
+ u->transient = b;
+
+ continue;
+ } else if (streq(l, "cgroup")) {
+ char *s;
+
+ s = strdup(v);
+ if (!v)
+ return -ENOMEM;
+
+ free(u->cgroup_path);
+ u->cgroup_path = s;
+ continue;
}
- if ((r = UNIT_VTABLE(u)->deserialize_item(u, l, v, fds)) < 0)
+ r = UNIT_VTABLE(u)->deserialize_item(u, l, v, fds);
+ if (r < 0)
return r;
}
}
@@ -2652,9 +2713,6 @@ static int drop_in_file(Unit *u, UnitSetPropertiesMode mode, const char *name, c
assert(_q);
assert(mode & (UNIT_PERSISTENT|UNIT_RUNTIME));
- if (u->manager->running_as == SYSTEMD_USER && !(mode & UNIT_PERSISTENT))
- return -ENOTSUP;
-
if (!filename_is_safe(name))
return -EINVAL;
@@ -2668,7 +2726,7 @@ static int drop_in_file(Unit *u, UnitSetPropertiesMode mode, const char *name, c
return -ENOENT;
p = strjoin(c, "/", u->id, ".d", NULL);
- } else if (mode & UNIT_PERSISTENT)
+ } else if (mode & UNIT_PERSISTENT)
p = strjoin("/etc/systemd/system/", u->id, ".d", NULL);
else
p = strjoin("/run/systemd/system/", u->id, ".d", NULL);
@@ -2741,6 +2799,43 @@ int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name) {
return r;
}
+int unit_make_transient(Unit *u) {
+ int r;
+
+ assert(u);
+
+ u->load_state = UNIT_STUB;
+ u->load_error = 0;
+ u->transient = true;
+
+ free(u->fragment_path);
+ u->fragment_path = NULL;
+
+ 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;
+
+ u->fragment_path = strjoin(c, "/", u->id, NULL);
+ if (!u->fragment_path)
+ return -ENOMEM;
+
+ mkdir_p(c, 0755);
+ } else {
+ u->fragment_path = strappend("/run/systemd/system/", u->id);
+ if (!u->fragment_path)
+ return -ENOMEM;
+
+ mkdir_p("/run/systemd/system", 0755);
+ }
+
+ return write_string_file_atomic_label(u->fragment_path, "# Transient stub");
+}
+
int unit_kill_context(
Unit *u,
KillContext *c,
diff --git a/src/core/unit.h b/src/core/unit.h
index be6abaff9..8a62787b3 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -241,6 +241,9 @@ struct Unit {
/* Did the last condition check succeed? */
bool condition_result;
+ /* Is this a transient unit? */
+ bool transient;
+
bool in_load_queue:1;
bool in_dbus_queue:1;
bool in_cleanup_queue:1;
@@ -425,6 +428,9 @@ struct UnitVTable {
/* Exclude from automatic gc */
bool no_gc:1;
+
+ /* True if transient units of this type are OK */
+ bool can_transient:1;
};
extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX];
@@ -595,6 +601,8 @@ int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name);
int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid_t control_pid, bool main_pid_alien);
+int unit_make_transient(Unit *u);
+
const char *unit_active_state_to_string(UnitActiveState i) _const_;
UnitActiveState unit_active_state_from_string(const char *s) _pure_;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 04:24:23 +0000