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-rw-r--r--Makefile.am4
-rw-r--r--TODO2
-rw-r--r--src/core/dbus-scope.c162
-rw-r--r--src/core/dbus-scope.h33
-rw-r--r--src/core/scope.c466
-rw-r--r--src/core/scope.h69
-rw-r--r--src/core/service.c5
-rw-r--r--src/core/slice.c5
-rw-r--r--src/core/unit.c3
-rw-r--r--src/core/unit.h2
-rw-r--r--src/notify/notify.c3
-rw-r--r--src/run/run.c194
-rw-r--r--src/shared/cgroup-util.c17
-rw-r--r--src/shared/cgroup-util.h1
-rw-r--r--src/shared/unit-name.c3
-rw-r--r--src/shared/unit-name.h1
16 files changed, 939 insertions, 31 deletions
diff --git a/Makefile.am b/Makefile.am
index ea18640456..4593245d40 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -850,6 +850,8 @@ libsystemd_core_la_SOURCES = \
src/core/path.h \
src/core/slice.c \
src/core/slice.h \
+ src/core/scope.c \
+ src/core/scope.h \
src/core/load-dropin.c \
src/core/load-dropin.h \
src/core/execute.c \
@@ -886,6 +888,8 @@ libsystemd_core_la_SOURCES = \
src/core/dbus-path.h \
src/core/dbus-slice.c \
src/core/dbus-slice.h \
+ src/core/dbus-scope.c \
+ src/core/dbus-scope.h \
src/core/dbus-execute.c \
src/core/dbus-execute.h \
src/core/dbus-kill.c \
diff --git a/TODO b/TODO
index 8a3df6037c..279446e6e0 100644
--- a/TODO
+++ b/TODO
@@ -28,6 +28,8 @@ Fedora 19:
Features:
+* service_coldplug() appears to reinstall the wrong stop timeout watch?
+
* transient units: allow creating auxiliary units with the same call
* make BlockIODeviceWeight=, BlockIODeviceBandwidth= runtime settable
diff --git a/src/core/dbus-scope.c b/src/core/dbus-scope.c
new file mode 100644
index 0000000000..1497b76761
--- /dev/null
+++ b/src/core/dbus-scope.c
@@ -0,0 +1,162 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+
+#include "dbus-unit.h"
+#include "dbus-common.h"
+#include "dbus-cgroup.h"
+#include "dbus-kill.h"
+#include "selinux-access.h"
+#include "dbus-scope.h"
+
+#define BUS_SCOPE_INTERFACE \
+ " <interface name=\"org.freedesktop.systemd1.Scope\">\n" \
+ " <property name=\"TimeoutStopUSec\" type=\"t\" access=\"read\"/>\n" \
+ BUS_KILL_CONTEXT_INTERFACE \
+ BUS_CGROUP_CONTEXT_INTERFACE \
+ " <property name=\"Result\" type=\"s\" access=\"read\"/>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_UNIT_INTERFACE \
+ BUS_SCOPE_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_UNIT_INTERFACES_LIST \
+ "org.freedesktop.systemd1.Scope\0"
+
+const char bus_scope_interface[] _introspect_("Scope") = BUS_SCOPE_INTERFACE;
+
+static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_scope_append_scope_result, scope_result, ScopeResult);
+
+static const BusProperty bus_scope_properties[] = {
+ { "TimeoutStopUSec", bus_property_append_usec, "t", offsetof(Scope, timeout_stop_usec) },
+ { "Result", bus_scope_append_scope_result, "s", offsetof(Scope, result) },
+ {}
+};
+
+DBusHandlerResult bus_scope_message_handler(Unit *u, DBusConnection *c, DBusMessage *message) {
+ Scope *s = SCOPE(u);
+
+ const BusBoundProperties bps[] = {
+ { "org.freedesktop.systemd1.Unit", bus_unit_properties, u },
+ { "org.freedesktop.systemd1.Scope", bus_scope_properties, s },
+ { "org.freedesktop.systemd1.Scope", bus_cgroup_context_properties, &s->cgroup_context },
+ { "org.freedesktop.systemd1.Scope", bus_kill_context_properties, &s->kill_context },
+ {}
+ };
+
+ SELINUX_UNIT_ACCESS_CHECK(u, c, message, "status");
+
+ return bus_default_message_handler(c, message, INTROSPECTION, INTERFACES_LIST, bps);
+}
+
+static int bus_scope_set_transient_properties(
+ Scope *s,
+ const char *name,
+ DBusMessageIter *i,
+ UnitSetPropertiesMode mode,
+ DBusError *error) {
+
+ int r;
+
+ assert(name);
+ assert(s);
+ assert(i);
+
+ if (streq(name, "PIDs")) {
+ DBusMessageIter sub;
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(i) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ r = set_ensure_allocated(&s->pids, trivial_hash_func, trivial_compare_func);
+ if (r < 0)
+ return r;
+
+ dbus_message_iter_recurse(i, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32) {
+ uint32_t pid;
+
+ dbus_message_iter_get_basic(&sub, &pid);
+
+ if (pid <= 1)
+ return -EINVAL;
+
+ r = set_put(s->pids, LONG_TO_PTR(pid));
+ if (r < 0 && r != -EEXIST)
+ return r;
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (set_size(s->pids) <= 0)
+ return -EINVAL;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int bus_scope_set_property(
+ Unit *u,
+ const char *name,
+ DBusMessageIter *i,
+ UnitSetPropertiesMode mode,
+ DBusError *error) {
+
+ Scope *s = SCOPE(u);
+ int r;
+
+ assert(name);
+ assert(u);
+ assert(i);
+
+ r = bus_cgroup_set_property(u, &s->cgroup_context, name, i, mode, error);
+ if (r != 0)
+ return r;
+
+ if (u->load_state == UNIT_STUB) {
+ /* While we are created we still accept PIDs */
+
+ r = bus_scope_set_transient_properties(s, name, i, mode, error);
+ if (r != 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int bus_scope_commit_properties(Unit *u) {
+ assert(u);
+
+ unit_realize_cgroup(u);
+ return 0;
+}
diff --git a/src/core/dbus-scope.h b/src/core/dbus-scope.h
new file mode 100644
index 0000000000..e6836f13f0
--- /dev/null
+++ b/src/core/dbus-scope.h
@@ -0,0 +1,33 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <dbus/dbus.h>
+
+#include "unit.h"
+
+DBusHandlerResult bus_scope_message_handler(Unit *u, DBusConnection *c, DBusMessage *message);
+
+int bus_scope_set_property(Unit *u, const char *name, DBusMessageIter *i, UnitSetPropertiesMode mode, DBusError *error);
+int bus_scope_commit_properties(Unit *u);
+
+extern const char bus_scope_interface[];
diff --git a/src/core/scope.c b/src/core/scope.c
new file mode 100644
index 0000000000..f88addadf3
--- /dev/null
+++ b/src/core/scope.c
@@ -0,0 +1,466 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include "unit.h"
+#include "scope.h"
+#include "load-fragment.h"
+#include "log.h"
+#include "dbus-scope.h"
+#include "special.h"
+#include "unit-name.h"
+#include "load-dropin.h"
+
+static const UnitActiveState state_translation_table[_SCOPE_STATE_MAX] = {
+ [SCOPE_DEAD] = UNIT_INACTIVE,
+ [SCOPE_RUNNING] = UNIT_ACTIVE,
+ [SCOPE_STOP_SIGTERM] = UNIT_DEACTIVATING,
+ [SCOPE_STOP_SIGKILL] = UNIT_DEACTIVATING,
+ [SCOPE_FAILED] = UNIT_FAILED
+};
+
+static void scope_init(Unit *u) {
+ Scope *s = SCOPE(u);
+
+ assert(u);
+ assert(u->load_state == UNIT_STUB);
+
+ s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
+
+ watch_init(&s->timer_watch);
+
+ cgroup_context_init(&s->cgroup_context);
+ kill_context_init(&s->kill_context);
+
+ UNIT(s)->ignore_on_isolate = true;
+ UNIT(s)->ignore_on_snapshot = true;
+}
+
+static void scope_done(Unit *u) {
+ Scope *s = SCOPE(u);
+
+ assert(u);
+
+ cgroup_context_done(&s->cgroup_context);
+
+ set_free(s->pids);
+ s->pids = NULL;
+
+ unit_unwatch_timer(u, &s->timer_watch);
+}
+
+static void scope_set_state(Scope *s, ScopeState state) {
+ ScopeState old_state;
+ assert(s);
+
+ old_state = s->state;
+ s->state = state;
+
+ if (state != SCOPE_STOP_SIGTERM &&
+ state != SCOPE_STOP_SIGKILL)
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
+
+ if (state != old_state)
+ log_debug("%s changed %s -> %s",
+ UNIT(s)->id,
+ scope_state_to_string(old_state),
+ scope_state_to_string(state));
+
+ unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
+}
+
+static int scope_add_default_dependencies(Scope *s) {
+ int r;
+
+ assert(s);
+
+ /* Make sure scopes are unloaded on shutdown */
+ r = unit_add_two_dependencies_by_name(
+ UNIT(s),
+ UNIT_BEFORE, UNIT_CONFLICTS,
+ SPECIAL_SHUTDOWN_TARGET, NULL, true);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static int scope_verify(Scope *s) {
+ assert(s);
+
+ if (UNIT(s)->load_state != UNIT_LOADED)
+ return 0;
+
+ if (set_size(s->pids) <= 0) {
+ log_error_unit(UNIT(s)->id, "Scope %s has no PIDs. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int scope_load(Unit *u) {
+ Scope *s = SCOPE(u);
+ int r;
+
+ assert(s);
+ assert(u->load_state == UNIT_STUB);
+
+ if (!u->transient && UNIT(s)->manager->n_reloading <= 0)
+ return -ENOENT;
+
+ u->load_state = UNIT_LOADED;
+
+ r = unit_load_dropin(u);
+ if (r < 0)
+ return r;
+
+ r = unit_add_default_slice(u);
+ if (r < 0)
+ return r;
+
+ if (u->default_dependencies) {
+ r = scope_add_default_dependencies(s);
+ if (r < 0)
+ return r;
+ }
+
+ return scope_verify(s);
+}
+
+static int scope_coldplug(Unit *u) {
+ Scope *s = SCOPE(u);
+ int r;
+
+ assert(s);
+ assert(s->state == SCOPE_DEAD);
+
+ if (s->deserialized_state != s->state) {
+
+ if ((s->deserialized_state == SCOPE_STOP_SIGKILL || s->deserialized_state == SCOPE_STOP_SIGTERM)
+ && s->timeout_stop_usec > 0) {
+ r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_stop_usec, &s->timer_watch);
+ if (r < 0)
+
+ return r;
+ }
+
+ scope_set_state(s, s->deserialized_state);
+ }
+
+ return 0;
+}
+
+static void scope_dump(Unit *u, FILE *f, const char *prefix) {
+ Scope *s = SCOPE(u);
+
+ assert(s);
+ assert(f);
+
+ fprintf(f,
+ "%sScope State: %s\n"
+ "%sResult: %s\n",
+ prefix, scope_state_to_string(s->state),
+ prefix, scope_result_to_string(s->result));
+
+ cgroup_context_dump(&s->cgroup_context, f, prefix);
+ kill_context_dump(&s->kill_context, f, prefix);
+}
+
+static void scope_enter_dead(Scope *s, ScopeResult f) {
+ assert(s);
+
+ if (f != SCOPE_SUCCESS)
+ s->result = f;
+
+ scope_set_state(s, s->result != SCOPE_SUCCESS ? SCOPE_FAILED : SCOPE_DEAD);
+}
+
+static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
+ int r;
+
+ assert(s);
+
+ if (f != SCOPE_SUCCESS)
+ s->result = f;
+
+ r = unit_kill_context(
+ UNIT(s),
+ &s->kill_context,
+ state != SCOPE_STOP_SIGTERM,
+ -1, -1, false);
+ if (r < 0)
+ goto fail;
+
+ if (r > 0) {
+ if (s->timeout_stop_usec > 0) {
+ r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_stop_usec, &s->timer_watch);
+ if (r < 0)
+ goto fail;
+ }
+
+ scope_set_state(s, state);
+ } else
+ scope_enter_dead(s, SCOPE_SUCCESS);
+
+ return;
+
+fail:
+ log_warning_unit(UNIT(s)->id,
+ "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
+
+ scope_enter_dead(s, SCOPE_FAILURE_RESOURCES);
+}
+
+static int scope_start(Unit *u) {
+ Scope *s = SCOPE(u);
+ int r;
+
+ assert(s);
+
+ if (s->state == SCOPE_STOP_SIGTERM ||
+ s->state == SCOPE_STOP_SIGKILL)
+ return -EAGAIN;
+
+ assert(s->state == SCOPE_DEAD);
+
+ if (!u->transient && UNIT(s)->manager->n_reloading <= 0)
+ return -ENOENT;
+
+ r = unit_realize_cgroup(u);
+ if (r < 0) {
+ log_error("Failed to realize cgroup: %s", strerror(-r));
+ return r;
+ }
+
+ r = cg_attach_many_with_mask(u->cgroup_mask, u->cgroup_path, s->pids);
+ if (r < 0)
+ return r;
+
+ set_free(s->pids);
+ s->pids = NULL;
+
+ s->result = SCOPE_SUCCESS;
+
+ scope_set_state(s, SCOPE_RUNNING);
+ return 0;
+}
+
+static int scope_stop(Unit *u) {
+ Scope *s = SCOPE(u);
+
+ assert(s);
+ assert(s->state == SCOPE_RUNNING);
+
+ if (s->state == SCOPE_STOP_SIGTERM ||
+ s->state == SCOPE_STOP_SIGKILL)
+ return 0;
+
+ assert(s->state == SCOPE_RUNNING);
+
+ scope_enter_signal(s, SCOPE_STOP_SIGTERM, SCOPE_SUCCESS);
+ return 0;
+}
+
+static int scope_kill(Unit *u, KillWho who, int signo, DBusError *error) {
+ return unit_kill_common(u, who, signo, -1, -1, error);
+}
+
+static int scope_serialize(Unit *u, FILE *f, FDSet *fds) {
+ Scope *s = SCOPE(u);
+
+ assert(s);
+ assert(f);
+ assert(fds);
+
+ unit_serialize_item(u, f, "state", scope_state_to_string(s->state));
+ return 0;
+}
+
+static int scope_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
+ Scope *s = SCOPE(u);
+
+ assert(u);
+ assert(key);
+ assert(value);
+ assert(fds);
+
+ if (streq(key, "state")) {
+ ScopeState state;
+
+ state = scope_state_from_string(value);
+ if (state < 0)
+ log_debug("Failed to parse state value %s", value);
+ else
+ s->deserialized_state = state;
+
+ } else
+ log_debug("Unknown serialization key '%s'", key);
+
+ return 0;
+}
+
+static bool scope_check_gc(Unit *u) {
+ Scope *s = SCOPE(u);
+ int r;
+
+ assert(s);
+
+ /* Never clean up scopes that still have a process around,
+ * even if the scope is formally dead. */
+
+ if (UNIT(s)->cgroup_path) {
+ r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
+ if (r <= 0)
+ return true;
+ }
+
+ return false;
+}
+
+static void scope_timer_event(Unit *u, uint64_t elapsed, Watch*w) {
+ Scope *s = SCOPE(u);
+
+ assert(s);
+ assert(elapsed == 1);
+ assert(w == &s->timer_watch);
+
+ switch (s->state) {
+
+ case SCOPE_STOP_SIGTERM:
+ if (s->kill_context.send_sigkill) {
+ log_warning_unit(u->id, "%s stopping timed out. Killing.", u->id);
+ scope_enter_signal(s, SCOPE_STOP_SIGKILL, SCOPE_FAILURE_TIMEOUT);
+ } else {
+ log_warning_unit(u->id, "%s stopping timed out. Skipping SIGKILL.", u->id);
+ scope_enter_dead(s, SCOPE_FAILURE_TIMEOUT);
+ }
+
+ break;
+
+ case SCOPE_STOP_SIGKILL:
+ log_warning_unit(u->id, "%s still around after SIGKILL. Ignoring.", u->id);
+ scope_enter_dead(s, SCOPE_FAILURE_TIMEOUT);
+ break;
+
+ default:
+ assert_not_reached("Timeout at wrong time.");
+ }
+}
+
+static void scope_notify_cgroup_empty_event(Unit *u) {
+ Scope *s = SCOPE(u);
+ assert(u);
+
+ log_debug_unit(u->id, "%s: cgroup is empty", u->id);
+
+ switch (s->state) {
+
+ case SCOPE_RUNNING:
+ case SCOPE_STOP_SIGTERM:
+ case SCOPE_STOP_SIGKILL:
+ scope_enter_dead(s, SCOPE_SUCCESS);
+
+ break;
+
+ default:
+ ;
+ }
+}
+
+_pure_ static UnitActiveState scope_active_state(Unit *u) {
+ assert(u);
+
+ return state_translation_table[SCOPE(u)->state];
+}
+
+_pure_ static const char *scope_sub_state_to_string(Unit *u) {
+ assert(u);
+
+ return scope_state_to_string(SCOPE(u)->state);
+}
+
+static const char* const scope_state_table[_SCOPE_STATE_MAX] = {
+ [SCOPE_DEAD] = "dead",
+ [SCOPE_RUNNING] = "active",
+ [SCOPE_STOP_SIGTERM] = "stop-sigterm",
+ [SCOPE_STOP_SIGKILL] = "stop-sigkill",
+ [SCOPE_FAILED] = "failed",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(scope_state, ScopeState);
+
+static const char* const scope_result_table[_SCOPE_RESULT_MAX] = {
+ [SCOPE_SUCCESS] = "success",
+ [SCOPE_FAILURE_RESOURCES] = "resources",
+ [SCOPE_FAILURE_TIMEOUT] = "timeout",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(scope_result, ScopeResult);
+
+const UnitVTable scope_vtable = {
+ .object_size = sizeof(Scope),
+ .sections =
+ "Unit\0"
+ "Scope\0"
+ "Install\0",
+
+ .private_section = "Scope",
+ .cgroup_context_offset = offsetof(Scope, cgroup_context),
+
+ .no_alias = true,
+ .no_instances = true,
+
+ .init = scope_init,
+ .load = scope_load,
+ .done = scope_done,
+
+ .coldplug = scope_coldplug,
+
+ .dump = scope_dump,
+
+ .start = scope_start,
+ .stop = scope_stop,
+
+ .kill = scope_kill,
+
+ .serialize = scope_serialize,
+ .deserialize_item = scope_deserialize_item,
+
+ .active_state = scope_active_state,
+ .sub_state_to_string = scope_sub_state_to_string,
+
+ .check_gc = scope_check_gc,
+
+ .timer_event = scope_timer_event,
+
+ .notify_cgroup_empty = scope_notify_cgroup_empty_event,
+
+ .bus_interface = "org.freedesktop.systemd1.Scope",
+ .bus_message_handler = bus_scope_message_handler,
+ .bus_set_property = bus_scope_set_property,
+ .bus_commit_properties = bus_scope_commit_properties,
+
+ .can_transient = true
+};
diff --git a/src/core/scope.h b/src/core/scope.h
new file mode 100644
index 0000000000..2a3dcb73d7
--- /dev/null
+++ b/src/core/scope.h
@@ -0,0 +1,69 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+typedef struct Scope Scope;
+
+#include "unit.h"
+#include "kill.h"
+
+typedef enum ScopeState {
+ SCOPE_DEAD,
+ SCOPE_RUNNING,
+ SCOPE_STOP_SIGTERM,
+ SCOPE_STOP_SIGKILL,
+ SCOPE_FAILED,
+ _SCOPE_STATE_MAX,
+ _SCOPE_STATE_INVALID = -1
+} ScopeState;
+
+typedef enum ScopeResult {
+ SCOPE_SUCCESS,
+ SCOPE_FAILURE_RESOURCES,
+ SCOPE_FAILURE_TIMEOUT,
+ _SCOPE_RESULT_MAX,
+ _SCOPE_RESULT_INVALID = -1
+} ScopeResult;
+
+struct Scope {
+ Unit meta;
+
+ CGroupContext cgroup_context;
+ KillContext kill_context;
+
+ ScopeState state, deserialized_state;
+ ScopeResult result;
+
+ usec_t timeout_stop_usec;
+
+ Set *pids;
+
+ Watch timer_watch;
+};
+
+extern const UnitVTable scope_vtable;
+
+const char* scope_state_to_string(ScopeState i) _const_;
+ScopeState scope_state_from_string(const char *s) _pure_;
+
+const char* scope_result_to_string(ScopeResult i) _const_;
+ScopeResult scope_result_from_string(const char *s) _pure_;
diff --git a/src/core/service.c b/src/core/service.c
index 6f18cbf759..2bc0dc5877 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1617,6 +1617,7 @@ static int service_coldplug(Unit *u) {
s->deserialized_state == SERVICE_FINAL_SIGTERM ||
s->deserialized_state == SERVICE_FINAL_SIGKILL ||
s->deserialized_state == SERVICE_AUTO_RESTART) {
+
if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
usec_t k;
@@ -2144,7 +2145,6 @@ static void service_kill_control_processes(Service *s) {
return;
p = strappenda(UNIT(s)->cgroup_path, "/control");
-
cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
}
@@ -3322,8 +3322,7 @@ static void service_notify_cgroup_empty_event(Unit *u) {
assert(u);
- log_debug_unit(u->id,
- "%s: cgroup is empty", u->id);
+ log_debug_unit(u->id, "%s: cgroup is empty", u->id);
switch (s->state) {
diff --git a/src/core/slice.c b/src/core/slice.c
index 557f829088..40d416e35e 100644
--- a/src/core/slice.c
+++ b/src/core/slice.c
@@ -103,7 +103,10 @@ static int slice_add_default_dependencies(Slice *s) {
assert(s);
/* Make sure slices are unloaded on shutdown */
- r = unit_add_dependency_by_name(UNIT(s), UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+ r = unit_add_two_dependencies_by_name(
+ UNIT(s),
+ UNIT_BEFORE, UNIT_CONFLICTS,
+ SPECIAL_SHUTDOWN_TARGET, NULL, true);
if (r < 0)
return r;
diff --git a/src/core/unit.c b/src/core/unit.c
index c6c9c18653..991111ab31 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -60,7 +60,8 @@ const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SNAPSHOT] = &snapshot_vtable,
[UNIT_SWAP] = &swap_vtable,
[UNIT_PATH] = &path_vtable,
- [UNIT_SLICE] = &slice_vtable
+ [UNIT_SLICE] = &slice_vtable,
+ [UNIT_SCOPE] = &scope_vtable
};
Unit *unit_new(Manager *m, size_t size) {
diff --git a/src/core/unit.h b/src/core/unit.h
index 8a62787b38..ed4df18246 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -280,6 +280,7 @@ typedef enum UnitSetPropertiesMode {
#include "swap.h"
#include "path.h"
#include "slice.h"
+#include "scope.h"
struct UnitVTable {
/* How much memory does an object of this unit type need */
@@ -462,6 +463,7 @@ DEFINE_CAST(SNAPSHOT, Snapshot);
DEFINE_CAST(SWAP, Swap);
DEFINE_CAST(PATH, Path);
DEFINE_CAST(SLICE, Slice);
+DEFINE_CAST(SCOPE, Scope);
Unit *unit_new(Manager *m, size_t size);
void unit_free(Unit *u);
diff --git a/src/notify/notify.c b/src/notify/notify.c
index 1e9766f862..a688a9f879 100644
--- a/src/notify/notify.c
+++ b/src/notify/notify.c
@@ -157,7 +157,8 @@ int main(int argc, char* argv[]) {
log_parse_environment();
log_open();
- if ((r = parse_argv(argc, argv)) <= 0) {
+ r = parse_argv(argc, argv);
+ if (r <= 0) {
retval = r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
goto finish;
}
diff --git a/src/run/run.c b/src/run/run.c
index 9f8bda48af..b45116870c 100644
--- a/src/run/run.c
+++ b/src/run/run.c
@@ -20,22 +20,104 @@
***/
#include <stdio.h>
+#include <getopt.h>
#include "sd-bus.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "strv.h"
+#include "build.h"
+#include "unit-name.h"
-static int start_transient_service(
- sd_bus *bus,
- const char *name,
- char **argv,
- sd_bus_error *error) {
+static bool arg_scope = false;
+static bool arg_user = false;
+static const char *arg_unit = NULL;
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
- char **i;
+static int help(void) {
+
+ printf("%s [OPTIONS...] [COMMAND LINE...]\n\n"
+ "Notify the init system about service status updates.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --user Run as user unit\n"
+ " --scope Run this as scope rather than service\n"
+ " --unit=UNIT Run under the specified unit name\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_USER,
+ ARG_SCOPE,
+ ARG_UNIT
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "user", no_argument, NULL, ARG_USER },
+ { "scope", no_argument, NULL, ARG_SCOPE },
+ { "unit", required_argument, NULL, ARG_UNIT },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "+h", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case ARG_USER:
+ arg_user = true;
+ break;
+
+ case ARG_SCOPE:
+ arg_scope = true;
+ break;
+
+ case ARG_UNIT:
+ arg_unit = optarg;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ if (optind >= argc) {
+ log_error("Command line to execute required.");
+ return -EINVAL;
+ }
+
+ return 1;
+}
+
+static int message_start_transient_unit_new(sd_bus *bus, const char *name, sd_bus_message **ret) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
+ log_info("Running as unit %s.", name);
+
r = sd_bus_message_new_method_call(
bus,
"org.freedesktop.systemd1",
@@ -57,6 +139,47 @@ static int start_transient_service(
if (r < 0)
return r;
+ *ret = m;
+ m = NULL;
+
+ return 0;
+}
+
+static int message_start_transient_unit_send(sd_bus *bus, sd_bus_message *m, sd_bus_error *error, sd_bus_message **reply) {
+ int r;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send_with_reply_and_block(bus, m, 0, error, reply);
+}
+
+static int start_transient_service(
+ sd_bus *bus,
+ char **argv,
+ sd_bus_error *error) {
+
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+ _cleanup_free_ char *name = NULL;
+ char **i;
+ int r;
+
+ if (arg_unit)
+ name = unit_name_mangle_with_suffix(arg_unit, ".service");
+ else
+ asprintf(&name, "run-%lu.service", (unsigned long) getpid());
+ if (!name)
+ return -ENOMEM;
+
+ r = message_start_transient_unit_new(bus, name, &m);
+ if (r < 0)
+ return r;
+
r = sd_bus_message_append(m, "s", "ExecStart");
if (r < 0)
return r;
@@ -107,46 +230,69 @@ static int start_transient_service(
if (r < 0)
return r;
- r = sd_bus_message_close_container(m);
+ return message_start_transient_unit_send(bus, m, error, &reply);
+}
+
+static int start_transient_scope(
+ sd_bus *bus,
+ char **argv,
+ sd_bus_error *error) {
+
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+ _cleanup_free_ char *name = NULL;
+ int r;
+
+ if (arg_unit)
+ name = unit_name_mangle_with_suffix(arg_unit, ".scope");
+ else
+ asprintf(&name, "run-%lu.scope", (unsigned long) getpid());
+ if (!name)
+ return -ENOMEM;
+
+ r = message_start_transient_unit_new(bus, name, &m);
if (r < 0)
return r;
- r = sd_bus_message_close_container(m);
+ r = sd_bus_message_append(m, "sv", "PIDs", "au", 1, (uint32_t) getpid());
+ if (r < 0)
+ return r;
+
+ r = message_start_transient_unit_send(bus, m, error, &reply);
if (r < 0)
return r;
- return sd_bus_send_with_reply_and_block(bus, m, 0, error, &reply);
+ execvp(argv[0], argv);
+ log_error("Failed to execute: %m");
+ return -errno;
}
int main(int argc, char* argv[]) {
sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_unref_ sd_bus *bus = NULL;
- _cleanup_free_ char *name = NULL;
int r;
log_parse_environment();
log_open();
- if (argc < 2) {
- log_error("Missing command line.");
- r = -EINVAL;
+ r = parse_argv(argc, argv);
+ if (r <= 0)
goto fail;
- }
- r = sd_bus_open_user(&bus);
+ if (arg_user)
+ r = sd_bus_open_user(&bus);
+ else
+ r = sd_bus_open_system(&bus);
if (r < 0) {
- log_error("Failed to create new bus: %s", strerror(-r));
- goto fail;
- }
-
- if (asprintf(&name, "run-%lu.service", (unsigned long) getpid()) < 0) {
- r = log_oom();
+ log_error("Failed to create new bus connection: %s", strerror(-r));
goto fail;
}
- r = start_transient_service(bus, name, argv + 1, &error);
+ if (arg_scope)
+ r = start_transient_scope(bus, argv + optind, &error);
+ else
+ r = start_transient_service(bus, argv + optind, &error);
if (r < 0) {
- log_error("Failed start transient service: %s", error.message);
+ log_error("Failed start transient unit: %s", error.message);
sd_bus_error_free(&error);
goto fail;
}
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index 5816b7d4d6..0e5da23ecd 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -1679,6 +1679,23 @@ int cg_attach_with_mask(CGroupControllerMask mask, const char *path, pid_t pid)
return r;
}
+int cg_attach_many_with_mask(CGroupControllerMask mask, const char *path, Set* pids) {
+ Iterator i;
+ void *pidp;
+ int r = 0;
+
+ SET_FOREACH(pidp, pids, i) {
+ pid_t pid = PTR_TO_LONG(pidp);
+ int k;
+
+ k = cg_attach_with_mask(mask, path, pid);
+ if (k < 0)
+ r = k;
+ }
+
+ return r;
+}
+
int cg_migrate_with_mask(CGroupControllerMask mask, const char *from, const char *to) {
CGroupControllerMask bit = 1;
const char *n;
diff --git a/src/shared/cgroup-util.h b/src/shared/cgroup-util.h
index 9883d941c2..c781aabb22 100644
--- a/src/shared/cgroup-util.h
+++ b/src/shared/cgroup-util.h
@@ -127,6 +127,7 @@ int cg_slice_to_path(const char *unit, char **ret);
int cg_create_with_mask(CGroupControllerMask mask, const char *path);
int cg_attach_with_mask(CGroupControllerMask mask, const char *path, pid_t pid);
+int cg_attach_many_with_mask(CGroupControllerMask mask, const char *path, Set* pids);
int cg_migrate_with_mask(CGroupControllerMask mask, const char *from, const char *to);
int cg_trim_with_mask(CGroupControllerMask mask, const char *path, bool delete_root);
diff --git a/src/shared/unit-name.c b/src/shared/unit-name.c
index bf1ab794a8..f2c30a6e4f 100644
--- a/src/shared/unit-name.c
+++ b/src/shared/unit-name.c
@@ -44,7 +44,8 @@ static const char* const unit_type_table[_UNIT_TYPE_MAX] = {
[UNIT_TIMER] = "timer",
[UNIT_SWAP] = "swap",
[UNIT_PATH] = "path",
- [UNIT_SLICE] = "slice"
+ [UNIT_SLICE] = "slice",
+ [UNIT_SCOPE] = "scope"
};
DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType);
diff --git a/src/shared/unit-name.h b/src/shared/unit-name.h
index 922d75232d..88f2b83443 100644
--- a/src/shared/unit-name.h
+++ b/src/shared/unit-name.h
@@ -42,6 +42,7 @@ enum UnitType {
UNIT_SWAP,
UNIT_PATH,
UNIT_SLICE,
+ UNIT_SCOPE,
_UNIT_TYPE_MAX,
_UNIT_TYPE_INVALID = -1
};