277 lines
7.8 KiB
C
277 lines
7.8 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <string.h>
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#include "bus-util.h"
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#include "strv.h"
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#include "machine.h"
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static int property_get_id(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Machine *m = userdata;
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int r;
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assert(bus);
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assert(reply);
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assert(m);
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r = sd_bus_message_append_array(reply, 'y', &m->id, 16);
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if (r < 0)
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return r;
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return 1;
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}
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static int property_get_state(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Machine *m = userdata;
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const char *state;
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int r;
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assert(bus);
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assert(reply);
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assert(m);
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state = machine_state_to_string(machine_get_state(m));
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r = sd_bus_message_append_basic(reply, 's', state);
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if (r < 0)
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return r;
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return 1;
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}
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass);
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static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Machine *m = userdata;
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int r;
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assert(bus);
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assert(message);
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assert(m);
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r = machine_stop(m);
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if (r < 0)
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return r;
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return sd_bus_reply_method_return(message, NULL);
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}
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static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Machine *m = userdata;
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const char *swho;
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int32_t signo;
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KillWho who;
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int r;
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assert(bus);
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assert(message);
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assert(m);
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r = sd_bus_message_read(message, "si", &swho, &signo);
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if (r < 0)
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return r;
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if (isempty(swho))
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who = KILL_ALL;
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else {
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who = kill_who_from_string(swho);
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if (who < 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);
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}
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if (signo <= 0 || signo >= _NSIG)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
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r = machine_kill(m, who, signo);
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if (r < 0)
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return r;
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return sd_bus_reply_method_return(message, NULL);
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}
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const sd_bus_vtable machine_vtable[] = {
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SD_BUS_VTABLE_START(0),
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SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), 0),
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SD_BUS_PROPERTY("Id", "ay", property_get_id, 0, 0),
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SD_BUS_PROPERTY("Timestamp", "t", NULL, offsetof(Machine, timestamp.realtime), 0),
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SD_BUS_PROPERTY("TimestampMonotonic", "t", NULL, offsetof(Machine, timestamp.monotonic), 0),
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SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Machine, service), 0),
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SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Machine, scope), 0),
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SD_BUS_PROPERTY("Leader", "u", NULL, offsetof(Machine, leader), 0),
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SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Machine, class), 0),
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SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),
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SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), 0),
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SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, 0),
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SD_BUS_METHOD("Kill", "si", NULL, method_kill, 0),
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SD_BUS_VTABLE_END
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};
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int machine_object_find(sd_bus *bus, const char *path, const char *interface, void **found, void *userdata) {
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Manager *m = userdata;
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Machine *machine;
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int r;
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assert(bus);
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assert(path);
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assert(interface);
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assert(found);
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assert(m);
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if (streq(path, "/org/freedesktop/machine1/machine/self")) {
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sd_bus_message *message;
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pid_t pid;
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message = sd_bus_get_current(bus);
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if (!message)
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return 0;
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r = sd_bus_get_owner_pid(bus, sd_bus_message_get_sender(message), &pid);
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if (r < 0)
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return 0;
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r = manager_get_machine_by_pid(m, pid, &machine);
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if (r <= 0)
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return 0;
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} else {
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_cleanup_free_ char *e = NULL;
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const char *p;
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p = startswith(path, "/org/freedesktop/machine1/machine/");
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if (!p)
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return 0;
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e = sd_bus_label_unescape(p);
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if (!e)
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return -ENOMEM;
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machine = hashmap_get(m->machines, e);
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if (!machine)
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return 0;
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}
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*found = machine;
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return 1;
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}
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char *machine_bus_path(Machine *m) {
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_cleanup_free_ char *e = NULL;
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assert(m);
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e = sd_bus_label_escape(m->name);
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if (!e)
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return NULL;
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return strappend("/org/freedesktop/machine1/machine/", e);
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}
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int machine_node_enumerator(sd_bus *bus, const char *path, char ***nodes, void *userdata) {
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_cleanup_strv_free_ char **l = NULL;
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Machine *machine = NULL;
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Manager *m = userdata;
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Iterator i;
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int r;
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assert(bus);
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assert(path);
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assert(nodes);
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HASHMAP_FOREACH(machine, m->machines, i) {
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char *p;
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p = machine_bus_path(machine);
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if (!p)
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return -ENOMEM;
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r = strv_push(&l, p);
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if (r < 0) {
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free(p);
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return r;
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}
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}
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*nodes = l;
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l = NULL;
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return 1;
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}
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int machine_send_signal(Machine *m, bool new_machine) {
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_cleanup_free_ char *p = NULL;
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assert(m);
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p = machine_bus_path(m);
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if (!p)
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return -ENOMEM;
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return sd_bus_emit_signal(
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m->manager->bus,
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"/org/freedesktop/machine1",
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"org.freedesktop.machine1.Manager",
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new_machine ? "MachineNew" : "MachineRemoved",
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"so", m->name, p);
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}
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int machine_send_create_reply(Machine *m, sd_bus_error *error) {
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_cleanup_bus_message_unref_ sd_bus_message *c = NULL;
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_cleanup_free_ char *p = NULL;
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assert(m);
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if (!m->create_message)
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return 0;
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c = m->create_message;
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m->create_message = NULL;
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if (error)
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return sd_bus_reply_method_error(c, error);
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/* Update the machine state file before we notify the client
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* about the result. */
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machine_save(m);
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p = machine_bus_path(m);
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if (!p)
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return -ENOMEM;
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return sd_bus_reply_method_return(c, "o", p);
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}
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