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authorLennart Poettering <lennart@poettering.net>2013-07-02 03:47:23 +0200
committerLennart Poettering <lennart@poettering.net>2013-07-02 03:47:23 +0200
commit1ee306e1248866617c96ed9f4263f375588ad838 (patch)
treeebcb5678d4236ea8a8afc30c6164a4b4f51a03bd /src/machine
parent374ec6abf31ada6ca554cc8ea99b282373fac010 (diff)
machined: split out machine registration stuff from logind
Embedded folks don't need the machine registration stuff, hence it's nice to make this optional. Also, I'd expect that machinectl will grow additional commands quickly, for example to join existing containers and suchlike, hence it's better keeping that separate from loginctl.
Diffstat (limited to 'src/machine')
l---------src/machine/Makefile1
-rw-r--r--src/machine/machine-dbus.c359
-rw-r--r--src/machine/machine.c411
-rw-r--r--src/machine/machine.h109
-rw-r--r--src/machine/machinectl.c764
-rw-r--r--src/machine/machined-dbus.c824
-rw-r--r--src/machine/machined.c408
-rw-r--r--src/machine/machined.h73
-rw-r--r--src/machine/org.freedesktop.machine1.conf46
-rw-r--r--src/machine/org.freedesktop.machine1.service12
10 files changed, 3007 insertions, 0 deletions
diff --git a/src/machine/Makefile b/src/machine/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/machine/Makefile
@@ -0,0 +1 @@
+../Makefile \ No newline at end of file
diff --git a/src/machine/machine-dbus.c b/src/machine/machine-dbus.c
new file mode 100644
index 0000000000..424f98edd5
--- /dev/null
+++ b/src/machine/machine-dbus.c
@@ -0,0 +1,359 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <string.h>
+
+#include "machined.h"
+#include "machine.h"
+#include "dbus-common.h"
+
+#define BUS_MACHINE_INTERFACE \
+ " <interface name=\"org.freedesktop.machine1.Machine\">\n" \
+ " <method name=\"Terminate\"/>\n" \
+ " <method name=\"Kill\">\n" \
+ " <arg name=\"who\" type=\"s\"/>\n" \
+ " <arg name=\"signal\" type=\"s\"/>\n" \
+ " </method>\n" \
+ " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Id\" type=\"ay\" access=\"read\"/>\n" \
+ " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
+ " <property name=\"Service\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Scope\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Leader\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Class\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"State\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"RootDirectory\" type=\"s\" access=\"read\"/>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_MACHINE_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.machine1.Machine\0"
+
+static int bus_machine_append_id(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ Machine *m = data;
+ dbus_bool_t b;
+ void *p;
+
+ assert(i);
+ assert(property);
+ assert(m);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "y", &sub))
+ return -ENOMEM;
+
+ p = &m->id;
+ b = dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &p, 16);
+ if (!b)
+ return -ENOMEM;
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_machine_append_state(DBusMessageIter *i, const char *property, void *data) {
+ Machine *m = data;
+ const char *state;
+
+ assert(i);
+ assert(property);
+ assert(m);
+
+ state = machine_state_to_string(machine_get_state(m));
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int get_machine_for_path(Manager *m, const char *path, Machine **_machine) {
+ _cleanup_free_ char *e = NULL;
+ Machine *machine;
+
+ assert(m);
+ assert(path);
+ assert(_machine);
+
+ if (!startswith(path, "/org/freedesktop/machine1/machine/"))
+ return -EINVAL;
+
+ e = bus_path_unescape(path + 32);
+ if (!e)
+ return -ENOMEM;
+
+ machine = hashmap_get(m->machines, e);
+ if (!machine)
+ return -ENOENT;
+
+ *_machine = machine;
+ return 0;
+}
+
+static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_machine_append_class, machine_class, MachineClass);
+
+static const BusProperty bus_machine_machine_properties[] = {
+ { "Name", bus_property_append_string, "s", offsetof(Machine, name), true },
+ { "Id", bus_machine_append_id, "ay", 0 },
+ { "Timestamp", bus_property_append_usec, "t", offsetof(Machine, timestamp.realtime) },
+ { "TimestampMonotonic", bus_property_append_usec, "t", offsetof(Machine, timestamp.monotonic) },
+ { "Service", bus_property_append_string, "s", offsetof(Machine, service), true },
+ { "Scope", bus_property_append_string, "s", offsetof(Machine, scope), true },
+ { "Class", bus_machine_append_class, "s", offsetof(Machine, class) },
+ { "State", bus_machine_append_state, "s", 0 },
+ { "RootDirectory", bus_property_append_string, "s", offsetof(Machine, root_directory), true },
+ { NULL, }
+};
+
+static DBusHandlerResult machine_message_dispatch(
+ Machine *m,
+ DBusConnection *connection,
+ DBusMessage *message) {
+
+ DBusError error;
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ int r;
+
+ assert(m);
+ assert(connection);
+ assert(message);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Machine", "Terminate")) {
+
+ r = machine_stop(m);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Machine", "Kill")) {
+ const char *swho;
+ int32_t signo;
+ KillWho who;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &swho,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (isempty(swho))
+ who = KILL_ALL;
+ else {
+ who = kill_who_from_string(swho);
+ if (who < 0)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+ }
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = machine_kill(m, who, signo);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else {
+ const BusBoundProperties bps[] = {
+ { "org.freedesktop.machine1.Machine", bus_machine_machine_properties, m },
+ { NULL, }
+ };
+
+ return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
+ }
+
+ if (reply) {
+ if (!bus_maybe_send_reply(connection, message, reply))
+ goto oom;
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+oom:
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+static DBusHandlerResult machine_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *manager = userdata;
+ Machine *m;
+ int r;
+
+ r = get_machine_for_path(manager, dbus_message_get_path(message), &m);
+ if (r < 0) {
+
+ if (r == -ENOMEM)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ if (r == -ENOENT) {
+ DBusError e;
+
+ dbus_error_init(&e);
+ dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown machine");
+ return bus_send_error_reply(connection, message, &e, r);
+ }
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ return machine_message_dispatch(m, connection, message);
+}
+
+const DBusObjectPathVTable bus_machine_vtable = {
+ .message_function = machine_message_handler
+};
+
+char *machine_bus_path(Machine *m) {
+ _cleanup_free_ char *e = NULL;
+
+ assert(m);
+
+ e = bus_path_escape(m->name);
+ if (!e)
+ return NULL;
+
+ return strappend("/org/freedesktop/machine1/machine/", e);
+}
+
+int machine_send_signal(Machine *m, bool new_machine) {
+ _cleanup_dbus_message_unref_ DBusMessage *msg = NULL;
+ _cleanup_free_ char *p = NULL;
+
+ assert(m);
+
+ msg = dbus_message_new_signal("/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ new_machine ? "MachineNew" : "MachineRemoved");
+
+ if (!m)
+ return -ENOMEM;
+
+ p = machine_bus_path(m);
+ if (!p)
+ return -ENOMEM;
+
+ if (!dbus_message_append_args(
+ msg,
+ DBUS_TYPE_STRING, &m->name,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID))
+ return -ENOMEM;
+
+ if (!dbus_connection_send(m->manager->bus, msg, NULL))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int machine_send_changed(Machine *m, const char *properties) {
+ _cleanup_dbus_message_unref_ DBusMessage *msg = NULL;
+ _cleanup_free_ char *p = NULL;
+
+ assert(m);
+
+ if (!m->started)
+ return 0;
+
+ p = machine_bus_path(m);
+ if (!p)
+ return -ENOMEM;
+
+ msg = bus_properties_changed_new(p, "org.freedesktop.machine1.Machine", properties);
+ if (!msg)
+ return -ENOMEM;
+
+ if (!dbus_connection_send(m->manager->bus, msg, NULL))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int machine_send_create_reply(Machine *m, DBusError *error) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+
+ assert(m);
+
+ if (!m->create_message)
+ return 0;
+
+ if (error) {
+ DBusError buffer;
+
+ dbus_error_init(&buffer);
+
+ if (!error || !dbus_error_is_set(error)) {
+ dbus_set_error_const(&buffer, DBUS_ERROR_INVALID_ARGS, "Invalid Arguments");
+ error = &buffer;
+ }
+
+ reply = dbus_message_new_error(m->create_message, error->name, error->message);
+ dbus_error_free(&buffer);
+
+ if (!reply)
+ return log_oom();
+ } else {
+ _cleanup_free_ char *p = NULL;
+
+ p = machine_bus_path(m);
+ if (!p)
+ return log_oom();
+
+ reply = dbus_message_new_method_return(m->create_message);
+ if (!reply)
+ return log_oom();
+
+ if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &p, DBUS_TYPE_INVALID))
+ return log_oom();
+ }
+
+ if (!dbus_connection_send(m->manager->bus, reply, NULL))
+ return log_oom();
+
+ dbus_message_unref(m->create_message);
+ m->create_message = NULL;
+
+ return 0;
+}
diff --git a/src/machine/machine.c b/src/machine/machine.c
new file mode 100644
index 0000000000..7d64abe5dd
--- /dev/null
+++ b/src/machine/machine.c
@@ -0,0 +1,411 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <systemd/sd-messages.h>
+
+#include "util.h"
+#include "mkdir.h"
+#include "hashmap.h"
+#include "strv.h"
+#include "fileio.h"
+#include "special.h"
+#include "unit-name.h"
+#include "dbus-common.h"
+#include "machine.h"
+
+Machine* machine_new(Manager *manager, const char *name) {
+ Machine *m;
+
+ assert(manager);
+ assert(name);
+
+ m = new0(Machine, 1);
+ if (!m)
+ return NULL;
+
+ m->name = strdup(name);
+ if (!m->name)
+ goto fail;
+
+ m->state_file = strappend("/run/systemd/machines/", m->name);
+ if (!m->state_file)
+ goto fail;
+
+ if (hashmap_put(manager->machines, m->name, m) < 0)
+ goto fail;
+
+ m->class = _MACHINE_CLASS_INVALID;
+ m->manager = manager;
+
+ return m;
+
+fail:
+ free(m->state_file);
+ free(m->name);
+ free(m);
+
+ return NULL;
+}
+
+void machine_free(Machine *m) {
+ assert(m);
+
+ if (m->in_gc_queue)
+ LIST_REMOVE(Machine, gc_queue, m->manager->machine_gc_queue, m);
+
+ if (m->scope) {
+ hashmap_remove(m->manager->machine_units, m->scope);
+ free(m->scope);
+ }
+
+ free(m->scope_job);
+
+ hashmap_remove(m->manager->machines, m->name);
+
+ if (m->create_message)
+ dbus_message_unref(m->create_message);
+
+ free(m->name);
+ free(m->state_file);
+ free(m->service);
+ free(m->root_directory);
+ free(m);
+}
+
+int machine_save(Machine *m) {
+ _cleanup_free_ char *temp_path = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ int r;
+
+ assert(m);
+ assert(m->state_file);
+
+ if (!m->started)
+ return 0;
+
+ r = mkdir_safe_label("/run/systemd/machines", 0755, 0, 0);
+ if (r < 0)
+ goto finish;
+
+ r = fopen_temporary(m->state_file, &f, &temp_path);
+ if (r < 0)
+ goto finish;
+
+ fchmod(fileno(f), 0644);
+
+ fprintf(f,
+ "# This is private data. Do not parse.\n"
+ "NAME=%s\n",
+ m->name);
+
+ if (m->scope)
+ fprintf(f, "SCOPE=%s\n", m->scope);
+
+ if (m->scope_job)
+ fprintf(f, "SCOPE_JOB=%s\n", m->scope_job);
+
+ if (m->service)
+ fprintf(f, "SERVICE=%s\n", m->service);
+
+ if (m->root_directory)
+ fprintf(f, "ROOT=%s\n", m->root_directory);
+
+ if (!sd_id128_equal(m->id, SD_ID128_NULL))
+ fprintf(f, "ID=" SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(m->id));
+
+ if (m->leader != 0)
+ fprintf(f, "LEADER=%lu\n", (unsigned long) m->leader);
+
+ if (m->class != _MACHINE_CLASS_INVALID)
+ fprintf(f, "CLASS=%s\n", machine_class_to_string(m->class));
+
+ if (dual_timestamp_is_set(&m->timestamp))
+ fprintf(f,
+ "REALTIME=%llu\n"
+ "MONOTONIC=%llu\n",
+ (unsigned long long) m->timestamp.realtime,
+ (unsigned long long) m->timestamp.monotonic);
+
+ fflush(f);
+
+ if (ferror(f) || rename(temp_path, m->state_file) < 0) {
+ r = -errno;
+ unlink(m->state_file);
+ unlink(temp_path);
+ }
+
+finish:
+ if (r < 0)
+ log_error("Failed to save machine data for %s: %s", m->name, strerror(-r));
+
+ return r;
+}
+
+int machine_load(Machine *m) {
+ _cleanup_free_ char *realtime = NULL, *monotonic = NULL, *id = NULL, *leader = NULL, *class = NULL;
+ int r;
+
+ assert(m);
+
+ r = parse_env_file(m->state_file, NEWLINE,
+ "SCOPE", &m->scope,
+ "SCOPE_JOB", &m->scope_job,
+ "SERVICE", &m->service,
+ "ROOT", &m->root_directory,
+ "ID", &id,
+ "LEADER", &leader,
+ "CLASS", &class,
+ "REALTIME", &realtime,
+ "MONOTONIC", &monotonic,
+ NULL);
+ if (r < 0) {
+ if (r == -ENOENT)
+ return 0;
+
+ log_error("Failed to read %s: %s", m->state_file, strerror(-r));
+ return r;
+ }
+
+ if (id)
+ sd_id128_from_string(id, &m->id);
+
+ if (leader)
+ parse_pid(leader, &m->leader);
+
+ if (class) {
+ MachineClass c;
+
+ c = machine_class_from_string(class);
+ if (c >= 0)
+ m->class = c;
+ }
+
+ if (realtime) {
+ unsigned long long l;
+ if (sscanf(realtime, "%llu", &l) > 0)
+ m->timestamp.realtime = l;
+ }
+
+ if (monotonic) {
+ unsigned long long l;
+ if (sscanf(monotonic, "%llu", &l) > 0)
+ m->timestamp.monotonic = l;
+ }
+
+ return r;
+}
+
+static int machine_start_scope(Machine *m) {
+ _cleanup_free_ char *description = NULL;
+ DBusError error;
+ char *job;
+ int r;
+
+ assert(m);
+
+ dbus_error_init(&error);
+
+ if (!m->scope) {
+ char *escaped = NULL;
+
+ escaped = unit_name_escape(m->name);
+ if (!escaped)
+ return log_oom();
+
+ m->scope = strjoin("machine-", escaped, ".scope", NULL);
+ free(escaped);
+
+ if (!m->scope)
+ return log_oom();
+
+ r = hashmap_put(m->manager->machine_units, m->scope, m);
+ if (r < 0)
+ log_warning("Failed to create mapping between unit and machine");
+ }
+
+ description = strappend(m->class == MACHINE_VM ? "Virtual Machine " : "Container ", m->name);
+
+ r = manager_start_scope(m->manager, m->scope, m->leader, SPECIAL_MACHINE_SLICE, description, &error, &job);
+ if (r < 0) {
+ log_error("Failed to start machine scope: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ } else {
+ free(m->scope_job);
+ m->scope_job = job;
+ }
+
+ return r;
+}
+
+int machine_start(Machine *m) {
+ int r;
+
+ assert(m);
+
+ if (m->started)
+ return 0;
+
+ /* Create cgroup */
+ r = machine_start_scope(m);
+ if (r < 0)
+ return r;
+
+ log_struct(LOG_INFO,
+ MESSAGE_ID(SD_MESSAGE_MACHINE_START),
+ "NAME=%s", m->name,
+ "LEADER=%lu", (unsigned long) m->leader,
+ "MESSAGE=New machine %s.", m->name,
+ NULL);
+
+ if (!dual_timestamp_is_set(&m->timestamp))
+ dual_timestamp_get(&m->timestamp);
+
+ m->started = true;
+
+ /* Save new machine data */
+ machine_save(m);
+
+ machine_send_signal(m, true);
+
+ return 0;
+}
+
+static int machine_stop_scope(Machine *m) {
+ DBusError error;
+ char *job;
+ int r;
+
+ assert(m);
+
+ dbus_error_init(&error);
+
+ if (!m->scope)
+ return 0;
+
+ r = manager_stop_unit(m->manager, m->scope, &error, &job);
+ if (r < 0) {
+ log_error("Failed to stop machine scope: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ return r;
+ }
+
+ free(m->scope_job);
+ m->scope_job = job;
+
+ return r;
+}
+
+int machine_stop(Machine *m) {
+ int r = 0, k;
+ assert(m);
+
+ if (m->started)
+ log_struct(LOG_INFO,
+ MESSAGE_ID(SD_MESSAGE_MACHINE_STOP),
+ "NAME=%s", m->name,
+ "LEADER=%lu", (unsigned long) m->leader,
+ "MESSAGE=Machine %s terminated.", m->name,
+ NULL);
+
+ /* Kill cgroup */
+ k = machine_stop_scope(m);
+ if (k < 0)
+ r = k;
+
+ unlink(m->state_file);
+ machine_add_to_gc_queue(m);
+
+ if (m->started)
+ machine_send_signal(m, false);
+
+ m->started = false;
+
+ return r;
+}
+
+int machine_check_gc(Machine *m, bool drop_not_started) {
+ assert(m);
+
+ if (drop_not_started && !m->started)
+ return 0;
+
+ if (m->scope_job)
+ return 1;
+
+ if (m->scope)
+ return manager_unit_is_active(m->manager, m->scope) != 0;
+
+ return 0;
+}
+
+void machine_add_to_gc_queue(Machine *m) {
+ assert(m);
+
+ if (m->in_gc_queue)
+ return;
+
+ LIST_PREPEND(Machine, gc_queue, m->manager->machine_gc_queue, m);
+ m->in_gc_queue = true;
+}
+
+MachineState machine_get_state(Machine *s) {
+ assert(s);
+
+ if (s->scope_job)
+ return s->started ? MACHINE_OPENING : MACHINE_CLOSING;
+
+ return MACHINE_RUNNING;
+}
+
+int machine_kill(Machine *m, KillWho who, int signo) {
+ assert(m);
+
+ if (!m->scope)
+ return -ESRCH;
+
+ return manager_kill_unit(m->manager, m->scope, who, signo, NULL);
+}
+
+static const char* const machine_class_table[_MACHINE_CLASS_MAX] = {
+ [MACHINE_CONTAINER] = "container",
+ [MACHINE_VM] = "vm"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(machine_class, MachineClass);
+
+static const char* const machine_state_table[_MACHINE_STATE_MAX] = {
+ [MACHINE_OPENING] = "opening",
+ [MACHINE_RUNNING] = "running",
+ [MACHINE_CLOSING] = "closing"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(machine_state, MachineState);
+
+static const char* const kill_who_table[_KILL_WHO_MAX] = {
+ [KILL_LEADER] = "leader",
+ [KILL_ALL] = "all"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho);
diff --git a/src/machine/machine.h b/src/machine/machine.h
new file mode 100644
index 0000000000..7501fa372e
--- /dev/null
+++ b/src/machine/machine.h
@@ -0,0 +1,109 @@
+/*-*- 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 Machine Machine;
+typedef enum KillWho KillWho;
+
+#include "list.h"
+#include "util.h"
+#include "machined.h"
+
+typedef enum MachineState {
+ MACHINE_OPENING, /* Machine is being registered */
+ MACHINE_RUNNING, /* Machine is running */
+ MACHINE_CLOSING, /* Machine is terminating */
+ _MACHINE_STATE_MAX,
+ _MACHINE_STATE_INVALID = -1
+} MachineState;
+
+typedef enum MachineClass {
+ MACHINE_CONTAINER,
+ MACHINE_VM,
+ _MACHINE_CLASS_MAX,
+ _MACHINE_CLASS_INVALID = -1
+} MachineClass;
+
+enum KillWho {
+ KILL_LEADER,
+ KILL_ALL,
+ _KILL_WHO_MAX,
+ _KILL_WHO_INVALID = -1
+};
+
+struct Machine {
+ Manager *manager;
+
+ char *name;
+ sd_id128_t id;
+
+ MachineState state;
+ MachineClass class;
+
+ char *state_file;
+ char *service;
+ char *root_directory;
+
+ char *scope;
+ char *scope_job;
+
+ pid_t leader;
+
+ dual_timestamp timestamp;
+
+ bool in_gc_queue:1;
+ bool started:1;
+
+ DBusMessage *create_message;
+
+ LIST_FIELDS(Machine, gc_queue);
+};
+
+Machine* machine_new(Manager *manager, const char *name);
+void machine_free(Machine *m);
+int machine_check_gc(Machine *m, bool drop_not_started);
+void machine_add_to_gc_queue(Machine *m);
+int machine_start(Machine *m);
+int machine_stop(Machine *m);
+int machine_save(Machine *m);
+int machine_load(Machine *m);
+int machine_kill(Machine *m, KillWho who, int signo);
+
+char *machine_bus_path(Machine *s);
+
+MachineState machine_get_state(Machine *u);
+
+extern const DBusObjectPathVTable bus_machine_vtable;
+
+int machine_send_signal(Machine *m, bool new_machine);
+int machine_send_changed(Machine *m, const char *properties);
+
+int machine_send_create_reply(Machine *m, DBusError *error);
+
+const char* machine_class_to_string(MachineClass t) _const_;
+MachineClass machine_class_from_string(const char *s) _pure_;
+
+const char* machine_state_to_string(MachineState t) _const_;
+MachineState machine_state_from_string(const char *s) _pure_;
+
+const char *kill_who_to_string(KillWho k) _const_;
+KillWho kill_who_from_string(const char *s) _pure_;
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
new file mode 100644
index 0000000000..5d107f360a
--- /dev/null
+++ b/src/machine/machinectl.c
@@ -0,0 +1,764 @@
+/*-*- 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 <dbus/dbus.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <getopt.h>
+#include <pwd.h>
+#include <locale.h>
+
+#include "log.h"
+#include "util.h"
+#include "macro.h"
+#include "pager.h"
+#include "dbus-common.h"
+#include "build.h"
+#include "strv.h"
+#include "cgroup-show.h"
+#include "spawn-polkit-agent.h"
+
+static char **arg_property = NULL;
+static bool arg_all = false;
+static bool arg_full = false;
+static bool arg_no_pager = false;
+static const char *arg_kill_who = NULL;
+static int arg_signal = SIGTERM;
+static enum transport {
+ TRANSPORT_NORMAL,
+ TRANSPORT_SSH,
+ TRANSPORT_POLKIT
+} arg_transport = TRANSPORT_NORMAL;
+static bool arg_ask_password = true;
+static char *arg_host = NULL;
+static char *arg_user = NULL;
+
+static void pager_open_if_enabled(void) {
+
+ /* Cache result before we open the pager */
+ if (arg_no_pager)
+ return;
+
+ pager_open(false);
+}
+
+static int list_machines(DBusConnection *bus, char **args, unsigned n) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ DBusMessageIter iter, sub, sub2;
+ unsigned k = 0;
+ int r;
+
+ pager_open_if_enabled();
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.machine1",
+ "/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ "ListMachines",
+ &reply,
+ NULL,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (on_tty())
+ printf("%-32s %-9s %-16s\n", "MACHINE", "CONTAINER", "SERVICE");
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *name, *class, *service, *object;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &class, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &service, true) < 0 ||
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ printf("%-32s %-9s %-16s\n", name, class, service);
+
+ k++;
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (on_tty())
+ printf("\n%u machines listed.\n", k);
+
+ return 0;
+}
+
+typedef struct MachineStatusInfo {
+ const char *name;
+ sd_id128_t id;
+ const char *default_control_group;
+ const char *class;
+ const char *service;
+ const char *slice;
+ const char *root_directory;
+ pid_t leader;
+ usec_t timestamp;
+} MachineStatusInfo;
+
+static void print_machine_status_info(MachineStatusInfo *i) {
+ char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
+ char since2[FORMAT_TIMESTAMP_MAX], *s2;
+ assert(i);
+
+ fputs(strna(i->name), stdout);
+
+ if (!sd_id128_equal(i->id, SD_ID128_NULL))
+ printf("(" SD_ID128_FORMAT_STR ")\n", SD_ID128_FORMAT_VAL(i->id));
+ else
+ putchar('\n');
+
+ s1 = format_timestamp_relative(since1, sizeof(since1), i->timestamp);
+ s2 = format_timestamp(since2, sizeof(since2), i->timestamp);
+
+ if (s1)
+ printf("\t Since: %s; %s\n", s2, s1);
+ else if (s2)
+ printf("\t Since: %s\n", s2);
+
+ if (i->leader > 0) {
+ _cleanup_free_ char *t = NULL;
+
+ printf("\t Leader: %u", (unsigned) i->leader);
+
+ get_process_comm(i->leader, &t);
+ if (t)
+ printf(" (%s)", t);
+
+ putchar('\n');
+ }
+
+ if (i->service) {
+ printf("\t Service: %s", i->service);
+
+ if (i->class)
+ printf("; class %s", i->class);
+
+ putchar('\n');
+ } else if (i->class)
+ printf("\t Class: %s\n", i->class);
+
+ if (i->slice)
+ printf("\t Slice: %s\n", i->slice);
+ if (i->root_directory)
+ printf("\t Root: %s\n", i->root_directory);
+
+ if (i->default_control_group) {
+ unsigned c;
+ int output_flags =
+ arg_all * OUTPUT_SHOW_ALL |
+ arg_full * OUTPUT_FULL_WIDTH;
+
+ printf("\t CGroup: %s\n", i->default_control_group);
+
+ if (arg_transport != TRANSPORT_SSH) {
+ c = columns();
+ if (c > 18)
+ c -= 18;
+ else
+ c = 0;
+
+ show_cgroup_and_extra_by_spec(i->default_control_group,
+ "\t\t ", c, false, &i->leader,
+ i->leader > 0 ? 1 : 0,
+ output_flags);
+ }
+ }
+}
+
+static int status_property_machine(const char *name, DBusMessageIter *iter, MachineStatusInfo *i) {
+ assert(name);
+ assert(iter);
+ assert(i);
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (!isempty(s)) {
+ if (streq(name, "Name"))
+ i->name = s;
+ else if (streq(name, "DefaultControlGroup"))
+ i->default_control_group = s;
+ else if (streq(name, "Class"))
+ i->class = s;
+ else if (streq(name, "Service"))
+ i->service = s;
+ else if (streq(name, "Slice"))
+ i->slice = s;
+ else if (streq(name, "RootDirectory"))
+ i->root_directory = s;
+ }
+ break;
+ }
+
+ case DBUS_TYPE_UINT32: {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "Leader"))
+ i->leader = (pid_t) u;
+
+ break;
+ }
+
+ case DBUS_TYPE_UINT64: {
+ uint64_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "Timestamp"))
+ i->timestamp = (usec_t) u;
+
+ break;
+ }
+
+ case DBUS_TYPE_ARRAY: {
+ DBusMessageIter sub;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE && streq(name, "Id")) {
+ void *v;
+ int n;
+
+ dbus_message_iter_get_fixed_array(&sub, &v, &n);
+ if (n == 0)
+ i->id = SD_ID128_NULL;
+ else if (n == 16)
+ memcpy(&i->id, v, n);
+ }
+
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int print_property(const char *name, DBusMessageIter *iter) {
+ assert(name);
+ assert(iter);
+
+ if (arg_property && !strv_find(arg_property, name))
+ return 0;
+
+ if (generic_print_property(name, iter, arg_all) > 0)
+ return 0;
+
+ if (arg_all)
+ printf("%s=[unprintable]\n", name);
+
+ return 0;
+}
+
+static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *interface = "";
+ int r;
+ DBusMessageIter iter, sub, sub2, sub3;
+ MachineStatusInfo machine_info = {};
+
+ assert(path);
+ assert(new_line);
+
+ r = bus_method_call_with_reply(
+ bus,
+ "org.freedesktop.machine1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "GetAll",
+ &reply,
+ NULL,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_INVALID);
+ if (r < 0)
+ goto finish;
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (*new_line)
+ printf("\n");
+
+ *new_line = true;
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *name;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&sub2, &sub3);
+
+ if (show_properties)
+ r = print_property(name, &sub3);
+ else
+ r = status_property_machine(name, &sub3, &machine_info);
+
+ if (r < 0) {
+ log_error("Failed to parse reply.");
+ goto finish;
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (!show_properties)
+ print_machine_status_info(&machine_info);
+
+ r = 0;
+
+finish:
+
+ return r;
+}
+
+static int show(DBusConnection *bus, char **args, unsigned n) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ int r, ret = 0;
+ DBusError error;
+ unsigned i;
+ bool show_properties, new_line = false;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ show_properties = !strstr(args[0], "status");
+
+ pager_open_if_enabled();
+
+ if (show_properties && n <= 1) {
+ /* If not argument is specified inspect the manager
+ * itself */
+
+ ret = show_one(args[0], bus, "/org/freedesktop/machine1", show_properties, &new_line);
+ goto finish;
+ }
+
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+
+ ret = bus_method_call_with_reply(
+ bus,
+ "org.freedesktop.machine1",
+ "/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ "GetMachine",
+ &reply,
+ NULL,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID);
+ if (ret < 0)
+ goto finish;
+
+ if (!dbus_message_get_args(reply, &error,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", bus_error_message(&error));
+ ret = -EIO;
+ goto finish;
+ }
+
+ r = show_one(args[0], bus, path, show_properties, &new_line);
+ if (r != 0)
+ ret = r;
+ }
+
+finish:
+ dbus_error_free(&error);
+
+ return ret;
+}
+
+static int kill_machine(DBusConnection *bus, char **args, unsigned n) {
+ unsigned i;
+
+ assert(args);
+
+ if (!arg_kill_who)
+ arg_kill_who = "all";
+
+ for (i = 1; i < n; i++) {
+ int r;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.machine1",
+ "/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ "KillMachine",
+ NULL,
+ NULL,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_STRING, &arg_kill_who,
+ DBUS_TYPE_INT32, &arg_signal,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+static int terminate_machine(DBusConnection *bus, char **args, unsigned n) {
+ unsigned i;
+
+ assert(args);
+
+ for (i = 1; i < n; i++) {
+ int r;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.machine1",
+ "/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ "TerminateMachine",
+ NULL,
+ NULL,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+static int help(void) {
+
+ printf("%s [OPTIONS...] {COMMAND} ...\n\n"
+ "Send control commands to or query the virtual machine and container registration manager.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " -p --property=NAME Show only properties by this name\n"
+ " -a --all Show all properties, including empty ones\n"
+ " --kill-who=WHO Who to send signal to\n"
+ " -l --full Do not ellipsize output\n"
+ " -s --signal=SIGNAL Which signal to send\n"
+ " --no-ask-password Don't prompt for password\n"
+ " -H --host=[USER@]HOST Show information for remote host\n"
+ " -P --privileged Acquire privileges before execution\n"
+ " --no-pager Do not pipe output into a pager\n\n"
+ "Commands:\n"
+ " list List running VMs and containers\n"
+ " status [NAME...] Show VM/container status\n"
+ " show[NAME...] Show properties of one or more VMs/containers\n"
+ " terminate [NAME...] Terminate one or more VMs/containers\n"
+ " kill [NAME...] Send signal to processes of a VM/container\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_NO_PAGER,
+ ARG_KILL_WHO,
+ ARG_NO_ASK_PASSWORD,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "property", required_argument, NULL, 'p' },
+ { "all", no_argument, NULL, 'a' },
+ { "full", no_argument, NULL, 'l' },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "kill-who", required_argument, NULL, ARG_KILL_WHO },
+ { "signal", required_argument, NULL, 's' },
+ { "host", required_argument, NULL, 'H' },
+ { "privileged", no_argument, NULL, 'P' },
+ { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "hp:als:H:P", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case 'p': {
+ char **l;
+
+ l = strv_append(arg_property, optarg);
+ if (!l)
+ return -ENOMEM;
+
+ strv_free(arg_property);
+ arg_property = l;
+
+ /* If the user asked for a particular
+ * property, show it to him, even if it is
+ * empty. */
+ arg_all = true;
+ break;
+ }
+
+ case 'a':
+ arg_all = true;
+ break;
+
+ case 'l':
+ arg_full = true;
+ break;
+
+ case ARG_NO_PAGER:
+ arg_no_pager = true;
+ break;
+
+ case ARG_NO_ASK_PASSWORD:
+ arg_ask_password = false;
+ break;
+
+ case ARG_KILL_WHO:
+ arg_kill_who = optarg;
+ break;
+
+ case 's':
+ arg_signal = signal_from_string_try_harder(optarg);
+ if (arg_signal < 0) {
+ log_error("Failed to parse signal string %s.", optarg);
+ return -EINVAL;
+ }
+ break;
+
+ case 'P':
+ arg_transport = TRANSPORT_POLKIT;
+ break;
+
+ case 'H':
+ arg_transport = TRANSPORT_SSH;
+ parse_user_at_host(optarg, &arg_user, &arg_host);
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ return 1;
+}
+
+static int machinectl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
+
+ static const struct {
+ const char* verb;
+ const enum {
+ MORE,
+ LESS,
+ EQUAL
+ } argc_cmp;
+ const int argc;
+ int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
+ } verbs[] = {
+ { "list", LESS, 1, list_machines },
+ { "status", MORE, 2, show },
+ { "show", MORE, 1, show },
+ { "terminate", MORE, 2, terminate_machine },
+ { "kill", MORE, 2, kill_machine },
+ };
+
+ int left;
+ unsigned i;
+
+ assert(argc >= 0);
+ assert(argv);
+ assert(error);
+
+ left = argc - optind;
+
+ if (left <= 0)
+ /* Special rule: no arguments means "list-sessions" */
+ i = 0;
+ else {
+ if (streq(argv[optind], "help")) {
+ help();
+ return 0;
+ }
+
+ for (i = 0; i < ELEMENTSOF(verbs); i++)
+ if (streq(argv[optind], verbs[i].verb))
+ break;
+
+ if (i >= ELEMENTSOF(verbs)) {
+ log_error("Unknown operation %s", argv[optind]);
+ return -EINVAL;
+ }
+ }
+
+ switch (verbs[i].argc_cmp) {
+
+ case EQUAL:
+ if (left != verbs[i].argc) {
+ log_error("Invalid number of arguments.");
+ return -EINVAL;
+ }
+
+ break;
+
+ case MORE:
+ if (left < verbs[i].argc) {
+ log_error("Too few arguments.");
+ return -EINVAL;
+ }
+
+ break;
+
+ case LESS:
+ if (left > verbs[i].argc) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+
+ break;
+
+ default:
+ assert_not_reached("Unknown comparison operator.");
+ }
+
+ if (!bus) {
+ log_error("Failed to get D-Bus connection: %s", error->message);
+ return -EIO;
+ }
+
+ return verbs[i].dispatch(bus, argv + optind, left);
+}
+
+int main(int argc, char*argv[]) {
+ int r, retval = EXIT_FAILURE;
+ DBusConnection *bus = NULL;
+ DBusError error;
+
+ dbus_error_init(&error);
+
+ setlocale(LC_ALL, "");
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r < 0)
+ goto finish;
+ else if (r == 0) {
+ retval = EXIT_SUCCESS;
+ goto finish;
+ }
+
+ if (arg_transport == TRANSPORT_NORMAL)
+ bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
+ else if (arg_transport == TRANSPORT_POLKIT)
+ bus_connect_system_polkit(&bus, &error);
+ else if (arg_transport == TRANSPORT_SSH)
+ bus_connect_system_ssh(NULL, arg_host, &bus, &error);
+ else
+ assert_not_reached("Uh, invalid transport...");
+
+ r = machinectl_main(bus, argc, argv, &error);
+ retval = r < 0 ? EXIT_FAILURE : r;
+
+finish:
+ if (bus) {
+ dbus_connection_flush(bus);
+ dbus_connection_close(bus);
+ dbus_connection_unref(bus);
+ }
+
+ dbus_error_free(&error);
+ dbus_shutdown();
+
+ strv_free(arg_property);
+
+ pager_close();
+
+ return retval;
+}
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
new file mode 100644
index 0000000000..a2e00d7102
--- /dev/null
+++ b/src/machine/machined-dbus.c
@@ -0,0 +1,824 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 <string.h>
+#include <unistd.h>
+#include <pwd.h>
+
+#include <systemd/sd-id128.h>
+#include <systemd/sd-messages.h>
+
+#include "machined.h"
+#include "dbus-common.h"
+#include "strv.h"
+#include "mkdir.h"
+#include "path-util.h"
+#include "special.h"
+#include "sleep-config.h"
+#include "fileio-label.h"
+#include "label.h"
+#include "utf8.h"
+#include "unit-name.h"
+#include "bus-errors.h"
+#include "virt.h"
+
+#define BUS_MANAGER_INTERFACE \
+ " <interface name=\"org.freedesktop.machine1.Manager\">\n" \
+ " <method name=\"GetMachine\">\n" \
+ " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"machine\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"GetMachineByPID\">\n" \
+ " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"machine\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"ListMachines\">\n" \
+ " <arg name=\"machines\" type=\"a(ssso)\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"CreateMachine\">\n" \
+ " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"id\" type=\"ay\" direction=\"in\"/>\n" \
+ " <arg name=\"service\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"class\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"root_directory\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"scope_properties\" type=\"a(sv)\" direction=\"in\"/>\n" \
+ " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"KillMachine\">\n" \
+ " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"who\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"signal\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"TerminateMachine\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <signal name=\"MachineNew\">\n" \
+ " <arg name=\"machine\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"MachineRemoved\">\n" \
+ " <arg name=\"machine\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION_BEGIN \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_MANAGER_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE
+
+#define INTROSPECTION_END \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.machine1.Manager\0"
+
+static bool valid_machine_name(const char *p) {
+ size_t l;
+
+ if (!filename_is_safe(p))
+ return false;
+
+ if (!ascii_is_valid(p))
+ return false;
+
+ l = strlen(p);
+
+ if (l < 1 || l> 64)
+ return false;
+
+ return true;
+}
+
+static int bus_manager_create_machine(Manager *manager, DBusMessage *message) {
+
+ const char *name, *service, *class, *slice, *root_directory;
+ _cleanup_free_ char *p = NULL;
+ DBusMessageIter iter, sub;
+ MachineClass c;
+ uint32_t leader;
+ sd_id128_t id;
+ Machine *m;
+ int n, r;
+ void *v;
+
+ assert(manager);
+ assert(message);
+
+ if (!dbus_message_iter_init(message, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &name);
+
+ if (!valid_machine_name(name) ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_BYTE)
+ return -EINVAL;
+
+ dbus_message_iter_recurse(&iter, &sub);
+ dbus_message_iter_get_fixed_array(&sub, &v, &n);
+
+ if (n == 0)
+ id = SD_ID128_NULL;
+ else if (n == 16)
+ memcpy(&id, v, n);
+ else
+ return -EINVAL;
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &service);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &class);
+
+ if (isempty(class))
+ c = _MACHINE_CLASS_INVALID;
+ else {
+ c = machine_class_from_string(class);
+ if (c < 0)
+ return -EINVAL;
+ }
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &leader);
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &slice);
+ if (!(isempty(slice) || (unit_name_is_valid(slice, false) && endswith(slice, ".slice"))) ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &root_directory);
+
+ if (!(isempty(root_directory) || path_is_absolute(root_directory)))
+ return -EINVAL;
+
+ if (hashmap_get(manager->machines, name))
+ return -EEXIST;
+
+ if (leader <= 0) {
+ leader = bus_get_unix_process_id(manager->bus, dbus_message_get_sender(message), NULL);
+ if (leader == 0)
+ return -EINVAL;
+ }
+
+ r = manager_add_machine(manager, name, &m);
+ if (r < 0)
+ goto fail;
+
+ m->leader = leader;
+ m->class = c;
+ m->id = id;
+
+ if (!isempty(service)) {
+ m->service = strdup(service);
+ if (!m->service) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(root_directory)) {
+ m->root_directory = strdup(root_directory);
+ if (!m->root_directory) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ r = machine_start(m);
+ if (r < 0)
+ goto fail;
+
+ m->create_message = dbus_message_ref(message);
+
+ return 0;
+
+fail:
+ if (m)
+ machine_add_to_gc_queue(m);
+
+ return r;
+}
+
+static DBusHandlerResult manager_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+
+ DBusError error;
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ int r;
+
+ assert(connection);
+ assert(message);
+ assert(m);
+
+ dbus_error_init(&error);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "GetMachine")) {
+ Machine *machine;
+ const char *name;
+ char *p;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = machine_bus_path(machine);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "GetMachineByPID")) {
+ uint32_t pid;
+ char *p;
+ Machine *machine;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &pid,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = manager_get_machine_by_pid(m, pid, &machine);
+ if (r <= 0)
+ return bus_send_error_reply(connection, message, NULL, r < 0 ? r : -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = machine_bus_path(machine);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "ListMachines")) {
+ Machine *machine;
+ Iterator i;
+ DBusMessageIter iter, sub;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssso)", &sub))
+ goto oom;
+
+ HASHMAP_FOREACH(machine, m->machines, i) {
+ _cleanup_free_ char *p = NULL;
+ DBusMessageIter sub2;
+ const char *class;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ goto oom;
+
+ p = machine_bus_path(machine);
+ if (!p)
+ goto oom;
+
+ class = strempty(machine_class_to_string(machine->class));
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &machine->name) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &class) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &machine->service) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&iter, &sub))
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "CreateMachine")) {
+
+ r = bus_manager_create_machine(m, message);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "KillMachine")) {
+ const char *swho;
+ int32_t signo;
+ KillWho who;
+ const char *name;
+ Machine *machine;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &swho,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (isempty(swho))
+ who = KILL_ALL;
+ else {
+ who = kill_who_from_string(swho);
+ if (who < 0)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+ }
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = machine_kill(machine, who, signo);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "TerminateMachine")) {
+ const char *name;
+ Machine *machine;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = machine_stop(machine);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
+ char *introspection = NULL;
+ FILE *f;
+ Iterator i;
+ Machine *machine;
+ size_t size;
+ char *p;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ /* We roll our own introspection code here, instead of
+ * relying on bus_default_message_handler() because we
+ * need to generate our introspection string
+ * dynamically. */
+
+ f = open_memstream(&introspection, &size);
+ if (!f)
+ goto oom;
+
+ fputs(INTROSPECTION_BEGIN, f);
+
+ HASHMAP_FOREACH(machine, m->machines, i) {
+ p = bus_path_escape(machine->name);
+
+ if (p) {
+ fprintf(f, "<node name=\"machine/%s\"/>", p);
+ free(p);
+ }
+ }
+
+ fputs(INTROSPECTION_END, f);
+
+ if (ferror(f)) {
+ fclose(f);
+ free(introspection);
+ goto oom;
+ }
+
+ fclose(f);
+
+ if (!introspection)
+ goto oom;
+
+ if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
+ free(introspection);
+ goto oom;
+ }
+
+ free(introspection);
+ } else
+ return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, NULL);
+
+ if (reply) {
+ if (!bus_maybe_send_reply(connection, message, reply))
+ goto oom;
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+oom:
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+const DBusObjectPathVTable bus_manager_vtable = {
+ .message_function = manager_message_handler
+};
+
+DBusHandlerResult bus_message_filter(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+ DBusError error;
+
+ assert(m);
+ assert(connection);
+ assert(message);
+
+ dbus_error_init(&error);
+
+ log_debug("Got message: %s %s %s", strna(dbus_message_get_sender(message)), strna(dbus_message_get_interface(message)), strna(dbus_message_get_member(message)));
+
+ if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
+ const char *path, *result, *unit;
+ Machine *mm;
+ uint32_t id;
+
+ if (!dbus_message_get_args(message, &error,
+ DBUS_TYPE_UINT32, &id,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_STRING, &unit,
+ DBUS_TYPE_STRING, &result,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse JobRemoved message: %s", bus_error_message(&error));
+ goto finish;
+ }
+
+
+ mm = hashmap_get(m->machine_units, unit);
+ if (mm) {
+ if (streq_ptr(path, mm->scope_job)) {
+ free(mm->scope_job);
+ mm->scope_job = NULL;
+
+ if (mm->started) {
+ if (streq(result, "done"))
+ machine_send_create_reply(mm, NULL);
+ else {
+ dbus_set_error(&error, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
+ machine_send_create_reply(mm, &error);
+ }
+ }
+ }
+
+ machine_add_to_gc_queue(mm);
+ }
+
+ } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
+
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ _cleanup_free_ char *unit = NULL;
+ const char *path;
+
+ path = dbus_message_get_path(message);
+ if (!path)
+ goto finish;
+
+ unit_name_from_dbus_path(path, &unit);
+ if (unit) {
+ Machine *mm;
+
+ mm = hashmap_get(m->machine_units, unit);
+ if (mm)
+ machine_add_to_gc_queue(mm);
+ }
+ }
+
+finish:
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+int manager_start_scope(
+ Manager *manager,
+ const char *scope,
+ pid_t pid,
+ const char *slice,
+ const char *description,
+ DBusError *error,
+ char **job) {
+
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
+ DBusMessageIter iter, sub, sub2, sub3, sub4;
+ const char *timeout_stop_property = "TimeoutStopUSec";
+ const char *pids_property = "PIDs";
+ uint64_t timeout = 500 * USEC_PER_MSEC;
+ const char *fail = "fail";
+ uint32_t u;
+
+ assert(manager);
+ assert(scope);
+ assert(pid > 1);
+
+ if (!slice)
+ slice = "";
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartTransientUnit");
+ if (!m)
+ return log_oom();
+
+ dbus_message_iter_init_append(m, &iter);
+
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &scope) ||
+ !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &fail) ||
+ !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sv)", &sub))
+ return log_oom();
+
+ if (!isempty(slice)) {
+ const char *slice_property = "Slice";
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &slice_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "s", &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &slice) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+ }
+
+ if (!isempty(description)) {
+ const char *description_property = "Description";
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "s", &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &description) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+ }
+
+ /* cgroup empty notification is not available in containers
+ * currently. To make this less problematic, let's shorten the
+ * stop timeout for sessions, so that we don't wait
+ * forever. */
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &timeout_stop_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "t", &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_UINT64, &timeout) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+
+ u = pid;
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &pids_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "au", &sub3) ||
+ !dbus_message_iter_open_container(&sub3, DBUS_TYPE_ARRAY, "u", &sub4) ||
+ !dbus_message_iter_append_basic(&sub4, DBUS_TYPE_UINT32, &u) ||
+ !dbus_message_iter_close_container(&sub3, &sub4) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2) ||
+ !dbus_message_iter_close_container(&iter, &sub))
+ return log_oom();
+
+ reply = dbus_connection_send_with_reply_and_block(manager->bus, m, -1, error);
+ if (!reply)
+ return -EIO;
+
+ if (job) {
+ const char *j;
+ char *copy;
+
+ if (!dbus_message_get_args(reply, error, DBUS_TYPE_OBJECT_PATH, &j, DBUS_TYPE_INVALID))
+ return -EIO;
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ }
+
+ return 0;
+}
+
+int manager_stop_unit(Manager *manager, const char *unit, DBusError *error, char **job) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *fail = "fail";
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StopUnit",
+ &reply,
+ error,
+ DBUS_TYPE_STRING, &unit,
+ DBUS_TYPE_STRING, &fail,
+ DBUS_TYPE_INVALID);
+ if (r < 0) {
+ log_error("Failed to stop unit %s: %s", unit, bus_error(error, r));
+ return r;
+ }
+
+ if (job) {
+ const char *j;
+ char *copy;
+
+ if (!dbus_message_get_args(reply, error,
+ DBUS_TYPE_OBJECT_PATH, &j,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ }
+
+ return 0;
+}
+
+int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, DBusError *error) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *w;
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ w = who == KILL_LEADER ? "process" : "cgroup";
+ assert_cc(sizeof(signo) == sizeof(int32_t));
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "KillUnit",
+ &reply,
+ error,
+ DBUS_TYPE_STRING, &unit,
+ DBUS_TYPE_STRING, &w,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID);
+ if (r < 0) {
+ log_error("Failed to stop unit %s: %s", unit, bus_error(error, r));
+ return r;
+ }
+
+ return 0;
+}
+
+int manager_unit_is_active(Manager *manager, const char *unit) {
+
+ const char *interface = "org.freedesktop.systemd1.Unit";
+ const char *property = "ActiveState";
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ _cleanup_free_ char *path = NULL;
+ DBusMessageIter iter, sub;
+ const char *state;
+ DBusError error;
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ dbus_error_init(&error);
+
+ path = unit_dbus_path_from_name(unit);
+ if (!path)
+ return -ENOMEM;
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "Get",
+ &reply,
+ &error,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID);
+
+ if (r < 0) {
+ log_error("Failed to query ActiveState: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ return r;
+ }
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ return -EINVAL;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ return -EINVAL;
+ }
+
+ dbus_message_iter_get_basic(&sub, &state);
+
+ return !streq(state, "inactive") && !streq(state, "failed");
+}
diff --git a/src/machine/machined.c b/src/machine/machined.c
new file mode 100644
index 0000000000..3cf7f92f96
--- /dev/null
+++ b/src/machine/machined.c
@@ -0,0 +1,408 @@
+/*-*- 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 <pwd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/epoll.h>
+
+#include <systemd/sd-daemon.h>
+
+#include "machined.h"
+#include "dbus-common.h"
+#include "dbus-loop.h"
+#include "strv.h"
+#include "conf-parser.h"
+#include "mkdir.h"
+#include "cgroup-util.h"
+
+Manager *manager_new(void) {
+ Manager *m;
+
+ m = new0(Manager, 1);
+ if (!m)
+ return NULL;
+
+ m->bus_fd = -1;
+ m->epoll_fd = -1;
+
+ m->machines = hashmap_new(string_hash_func, string_compare_func);
+ m->machine_units = hashmap_new(string_hash_func, string_compare_func);
+
+ if (!m->machines || !m->machine_units) {
+ manager_free(m);
+ return NULL;
+ }
+
+ return m;
+}
+
+void manager_free(Manager *m) {
+ Machine *machine;
+
+ assert(m);
+
+ while ((machine = hashmap_first(m->machines)))
+ machine_free(machine);
+
+ hashmap_free(m->machines);
+ hashmap_free(m->machine_units);
+
+ if (m->bus) {
+ dbus_connection_flush(m->bus);
+ dbus_connection_close(m->bus);
+ dbus_connection_unref(m->bus);
+ }
+
+ if (m->bus_fd >= 0)
+ close_nointr_nofail(m->bus_fd);
+
+ if (m->epoll_fd >= 0)
+ close_nointr_nofail(m->epoll_fd);
+
+ free(m);
+}
+
+int manager_add_machine(Manager *m, const char *name, Machine **_machine) {
+ Machine *machine;
+
+ assert(m);
+ assert(name);
+
+ machine = hashmap_get(m->machines, name);
+ if (machine) {
+ if (_machine)
+ *_machine = machine;
+
+ return 0;
+ }
+
+ machine = machine_new(m, name);
+ if (!m)
+ return -ENOMEM;
+
+ if (_machine)
+ *_machine = machine;
+
+ return 0;
+}
+
+int manager_enumerate_machines(Manager *m) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+ int r = 0;
+
+ assert(m);
+
+ /* Read in machine data stored on disk */
+ d = opendir("/run/systemd/machines");
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open /run/systemd/machines: %m");
+ return -errno;
+ }
+
+ FOREACH_DIRENT(de, d, return -errno) {
+ struct Machine *machine;
+ int k;
+
+ if (!dirent_is_file(de))
+ continue;
+
+ k = manager_add_machine(m, de->d_name, &machine);
+ if (k < 0) {
+ log_error("Failed to add machine by file name %s: %s", de->d_name, strerror(-k));
+
+ r = k;
+ continue;
+ }
+
+ machine_add_to_gc_queue(machine);
+
+ k = machine_load(machine);
+ if (k < 0)
+ r = k;
+ }
+
+ return r;
+}
+
+int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) {
+ _cleanup_free_ char *unit = NULL;
+ Machine *mm;
+ int r;
+
+ assert(m);
+ assert(pid >= 1);
+ assert(machine);
+
+ r = cg_pid_get_unit(pid, &unit);
+ if (r < 0)
+ return r;
+
+ mm = hashmap_get(m->machine_units, unit);
+ if (!mm)
+ return 0;
+
+ *machine = mm;
+ return 1;
+}
+
+static int manager_connect_bus(Manager *m) {
+ DBusError error;
+ int r;
+ struct epoll_event ev = {
+ .events = EPOLLIN,
+ .data.u32 = FD_BUS,
+ };
+
+ assert(m);
+ assert(!m->bus);
+ assert(m->bus_fd < 0);
+
+ dbus_error_init(&error);
+
+ m->bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
+ if (!m->bus) {
+ log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
+ r = -ECONNREFUSED;
+ goto fail;
+ }
+
+ if (!dbus_connection_register_object_path(m->bus, "/org/freedesktop/machine1", &bus_manager_vtable, m) ||
+ !dbus_connection_register_fallback(m->bus, "/org/freedesktop/machine1/machine", &bus_machine_vtable, m) ||
+ !dbus_connection_add_filter(m->bus, bus_message_filter, m, NULL)) {
+ r = log_oom();
+ goto fail;
+ }
+
+ dbus_bus_add_match(m->bus,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "member='JobRemoved',"
+ "path='/org/freedesktop/systemd1'",
+ &error);
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to add match for JobRemoved: %s", bus_error_message(&error));
+ dbus_error_free(&error);
+ }
+
+ dbus_bus_add_match(m->bus,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.DBus.Properties',"
+ "member='PropertiesChanged'",
+ &error);
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to add match for PropertiesChanged: %s", bus_error_message(&error));
+ dbus_error_free(&error);
+ }
+
+ r = bus_method_call_with_reply(
+ m->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "Subscribe",
+ NULL,
+ &error,
+ DBUS_TYPE_INVALID);
+ if (r < 0) {
+ log_error("Failed to enable subscription: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ }
+
+ r = dbus_bus_request_name(m->bus, "org.freedesktop.machine1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to register name on bus: %s", bus_error_message(&error));
+ r = -EIO;
+ goto fail;
+ }
+
+ if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
+ log_error("Failed to acquire name.");
+ r = -EEXIST;
+ goto fail;
+ }
+
+ m->bus_fd = bus_loop_open(m->bus);
+ if (m->bus_fd < 0) {
+ r = m->bus_fd;
+ goto fail;
+ }
+
+ if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->bus_fd, &ev) < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ dbus_error_free(&error);
+
+ return r;
+}
+
+void manager_gc(Manager *m, bool drop_not_started) {
+ Machine *machine;
+
+ assert(m);
+
+ while ((machine = m->machine_gc_queue)) {
+ LIST_REMOVE(Machine, gc_queue, m->machine_gc_queue, machine);
+ machine->in_gc_queue = false;
+
+ if (machine_check_gc(machine, drop_not_started) == 0) {
+ machine_stop(machine);
+ machine_free(machine);
+ }
+ }
+}
+
+int manager_startup(Manager *m) {
+ int r;
+ Machine *machine;
+ Iterator i;
+
+ assert(m);
+ assert(m->epoll_fd <= 0);
+
+ m->epoll_fd = epoll_create1(EPOLL_CLOEXEC);
+ if (m->epoll_fd < 0)
+ return -errno;
+
+ /* Connect to the bus */
+ r = manager_connect_bus(m);
+ if (r < 0)
+ return r;
+
+ /* Deserialize state */
+ manager_enumerate_machines(m);
+
+ /* Remove stale objects before we start them */
+ manager_gc(m, false);
+
+ /* And start everything */
+ HASHMAP_FOREACH(machine, m->machines, i)
+ machine_start(machine);
+
+ return 0;
+}
+
+int manager_run(Manager *m) {
+ assert(m);
+
+ for (;;) {
+ struct epoll_event event;
+ int n;
+
+ manager_gc(m, true);
+
+ if (dbus_connection_dispatch(m->bus) != DBUS_DISPATCH_COMPLETE)
+ continue;
+
+ manager_gc(m, true);
+
+ n = epoll_wait(m->epoll_fd, &event, 1, -1);
+ if (n < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+
+ log_error("epoll() failed: %m");
+ return -errno;
+ }
+
+ if (n == 0)
+ continue;
+
+ switch (event.data.u32) {
+
+ case FD_BUS:
+ bus_loop_dispatch(m->bus_fd);
+ break;
+
+ default:
+ assert_not_reached("Unknown fd");
+ }
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ Manager *m = NULL;
+ int r;
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_set_facility(LOG_AUTH);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ if (argc != 1) {
+ log_error("This program takes no arguments.");
+ r = -EINVAL;
+ goto finish;
+ }
+
+ /* Always create the directories people can create inotify
+ * watches in. Note that some applications might check for the
+ * existence of /run/systemd/seats/ to determine whether
+ * machined is available, so please always make sure this check
+ * stays in. */
+ mkdir_label("/run/systemd/machines", 0755);
+
+ m = manager_new();
+ if (!m) {
+ r = log_oom();
+ goto finish;
+ }
+
+ r = manager_startup(m);
+ if (r < 0) {
+ log_error("Failed to fully start up daemon: %s", strerror(-r));
+ goto finish;
+ }
+
+ log_debug("systemd-machined running as pid %lu", (unsigned long) getpid());
+
+ sd_notify(false,
+ "READY=1\n"
+ "STATUS=Processing requests...");
+
+ r = manager_run(m);
+
+ log_debug("systemd-machined stopped as pid %lu", (unsigned long) getpid());
+
+finish:
+ sd_notify(false,
+ "STATUS=Shutting down...");
+
+ if (m)
+ manager_free(m);
+
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/src/machine/machined.h b/src/machine/machined.h
new file mode 100644
index 0000000000..32a15fe1ab
--- /dev/null
+++ b/src/machine/machined.h
@@ -0,0 +1,73 @@
+/*-*- 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 <stdbool.h>
+#include <inttypes.h>
+#include <dbus/dbus.h>
+
+#include "util.h"
+#include "list.h"
+#include "hashmap.h"
+
+typedef struct Manager Manager;
+
+#include "machine.h"
+
+struct Manager {
+ DBusConnection *bus;
+
+ int bus_fd;
+ int epoll_fd;
+
+ Hashmap *machines;
+ Hashmap *machine_units;
+
+ LIST_HEAD(Machine, machine_gc_queue);
+};
+
+enum {
+ FD_BUS
+};
+
+Manager *manager_new(void);
+void manager_free(Manager *m);
+
+int manager_add_machine(Manager *m, const char *name, Machine **_machine);
+
+int manager_enumerate_machines(Manager *m);
+
+int manager_startup(Manager *m);
+int manager_run(Manager *m);
+
+void manager_gc(Manager *m, bool drop_not_started);
+
+int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine);
+
+extern const DBusObjectPathVTable bus_manager_vtable;
+
+DBusHandlerResult bus_message_filter(DBusConnection *c, DBusMessage *message, void *userdata);
+
+int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, DBusError *error, char **job);
+int manager_stop_unit(Manager *manager, const char *unit, DBusError *error, char **job);
+int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, DBusError *error);
+int manager_unit_is_active(Manager *manager, const char *unit);
diff --git a/src/machine/org.freedesktop.machine1.conf b/src/machine/org.freedesktop.machine1.conf
new file mode 100644
index 0000000000..2aad42019f
--- /dev/null
+++ b/src/machine/org.freedesktop.machine1.conf
@@ -0,0 +1,46 @@
+<?xml version="1.0"?> <!--*-nxml-*-->
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+
+<!--
+ This file is part of systemd.
+
+ 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.
+-->
+
+<busconfig>
+
+ <policy user="root">
+ <allow own="org.freedesktop.machine1"/>
+ <allow send_destination="org.freedesktop.machine1"/>
+ <allow receive_sender="org.freedesktop.machine1"/>
+ </policy>
+
+ <policy context="default">
+ <deny send_destination="org.freedesktop.machine1"/>
+
+ <allow send_destination="org.freedesktop.machine1"
+ send_interface="org.freedesktop.DBus.Introspectable"/>
+
+ <allow send_destination="org.freedesktop.machine1"
+ send_interface="org.freedesktop.DBus.Peer"/>
+
+ <allow send_destination="org.freedesktop.machine1"
+ send_interface="org.freedesktop.DBus.Properties"
+ send_member="Get"/>
+
+ <allow send_destination="org.freedesktop.machine1"
+ send_interface="org.freedesktop.DBus.Properties"
+ send_member="GetAll"/>
+
+ <allow send_destination="org.freedesktop.machine1"
+ send_interface="org.freedesktop.machine1.Manager"
+ send_member="ListMachines"/>
+
+ <allow receive_sender="org.freedesktop.machine1"/>
+ </policy>
+
+</busconfig>
diff --git a/src/machine/org.freedesktop.machine1.service b/src/machine/org.freedesktop.machine1.service
new file mode 100644
index 0000000000..d3dc99852b
--- /dev/null
+++ b/src/machine/org.freedesktop.machine1.service
@@ -0,0 +1,12 @@
+# This file is part of systemd.
+#
+# 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.
+
+[D-BUS Service]
+Name=org.freedesktop.machine1
+Exec=/bin/false
+User=root
+SystemdService=dbus-org.freedesktop.machine1.service
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-04 07:32:01 +0000