35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include <sys/epoll.h>

4871690d9e32608bbd9b18505b5326c2079c9690Allin Cottrell#include <sys/timerfd.h>

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include <errno.h>

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include <unistd.h>

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include "sd-bus.h"

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering#include "log.h"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "strv.h"

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include "mkdir.h"

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include "missing.h"

3b7124a8db56ed57525b9ecfd19cfdc8c9facba0Lennart Poettering#include "dbus-unit.h"

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen#include "dbus-job.h"

6482f6269c87d2249e52e889a63adbdd50f2d691Ronny Chevalier#include "dbus-manager.h"

0b452006de98294d1690f045f6ea2f7f6630ec3bRonny Chevalier#include "dbus-execute.h"

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include "dbus-kill.h"

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering#include "dbus-cgroup.h"

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering#include "special.h"

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering#include "dbus.h"

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering#include "bus-util.h"

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek#include "bus-error.h"

46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering#include "bus-errors.h"

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek#include "strxcpyx.h"

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek#include "bus-internal.h"

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek#include "selinux-access.h"

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek#define CONNECTIONS_MAX 512

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poetteringstatic void destroy_bus(Manager *m, sd_bus **bus);

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

f8294e4175918117ca6c131720bcf287eadcd029Josh Triplettint bus_send_queued_message(Manager *m) {

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!m->queued_message)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m->queued_message_bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering /* If we cannot get rid of this message we won't dispatch any

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_send(m->queued_message_bus, m->queued_message, NULL);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering log_warning("Failed to send queued message: %s", strerror(-r));

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering m->queued_message = sd_bus_message_unref(m->queued_message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering m->queued_message_bus = sd_bus_unref(m->queued_message_bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int signal_agent_released(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *cgroup;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_read(message, "s", &cgroup);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering if (r < 0) {

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering bus_log_parse_error(r);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler manager_notify_cgroup_empty(m, cgroup);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (m->running_as == SYSTEMD_SYSTEM && m->system_bus) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering /* If we are running as system manager, forward the

ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_send(m->system_bus, message, NULL);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering log_warning("Failed to forward Released message: %s", strerror(-r));

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poetteringstatic int signal_disconnected(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt if (bus == m->api_bus)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering destroy_bus(m, &m->api_bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (bus == m->system_bus)

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering destroy_bus(m, &m->system_bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (set_remove(m->private_buses, bus)) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering log_debug("Got disconnect on private connection.");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering destroy_bus(m, &bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int signal_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *name, *old_owner, *new_owner;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

3b97fcbd28f92a1e51887fef5de8844a89bde523Lennart Poettering assert(message);

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_read(message, "sss", &name, &old_owner, &new_owner);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering bus_log_parse_error(r);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering manager_dispatch_bus_name_owner_changed(

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering m, name,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering isempty(old_owner) ? NULL : old_owner,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering isempty(new_owner) ? NULL : new_owner);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int signal_activation_request(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *ret_error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *name;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Unit *u;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_read(message, "s", &name);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering bus_log_parse_error(r);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek if (manager_unit_inactive_or_pending(m, SPECIAL_DBUS_SERVICE) ||

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering manager_unit_inactive_or_pending(m, SPECIAL_DBUS_SOCKET)) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_error_setf(&error, BUS_ERROR_SHUTTING_DOWN, "Refusing activation, D-Bus is shutting down.");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering goto failed;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = manager_load_unit(m, name, NULL, &error, &u);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering goto failed;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (u->refuse_manual_start) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_error_setf(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, %s may be requested by dependency only.", u->id);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering goto failed;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = manager_add_job(m, JOB_START, u, JOB_REPLACE, true, &error, NULL);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering goto failed;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering /* Successfully queued, that's it for us */

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringfailed:

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!sd_bus_error_is_set(&error))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_error_set_errno(&error, r);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering log_debug("D-Bus activation failed for %s: %s", name, bus_error_message(&error, r));

e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_new_signal(bus, &reply, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Activator", "ActivationFailure");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering bus_log_create_error(r);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_append(reply, "sss", name, error.name, error.message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering bus_log_create_error(r);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_send_to(bus, reply, "org.freedesktop.DBus", NULL);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering log_error("Failed to respond with to bus activation request: %s", strerror(-r));

e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#ifdef HAVE_SELINUX

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int selinux_filter(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *verb, *path;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Unit *u = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Job *j;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering /* Our own method calls are all protected individually with

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Properties", "Set"))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering verb = "reload";

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering else if (sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", NULL) ||

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Properties", NULL) ||

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_message_is_method_call(message, "org.freedesktop.DBus.ObjectManager", NULL) ||

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Peer", NULL))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering verb = "status";

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering else

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

ec5ff4445cca6a1d786b8da36cf6fe0acc0b94c8Filipe Brandenburger

ec5ff4445cca6a1d786b8da36cf6fe0acc0b94c8Filipe Brandenburger path = sd_bus_message_get_path(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek if (object_path_startswith("/org/freedesktop/systemd1", path)) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = selinux_access_check(bus, message, verb, error);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 0;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering }

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (streq_ptr(path, "/org/freedesktop/systemd1/unit/self")) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering pid_t pid;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 0;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_creds_get_pid(creds, &pid);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 0;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering u = manager_get_unit_by_pid(m, pid);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering } else {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = manager_get_job_from_dbus_path(m, path, &j);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r >= 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering u = j->unit;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering else

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering manager_load_unit_from_dbus_path(m, path, NULL, &u);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering }

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (!u)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 0;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = selinux_unit_access_check(u, bus, message, verb, error);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 0;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering}

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering#endif

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poetteringstatic int bus_job_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering Manager *m = userdata;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering Job *j;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering int r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(bus);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(path);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(interface);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(found);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(m);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = manager_get_job_from_dbus_path(m, path, &j);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 0;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering *found = j;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return 1;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering}

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poetteringstatic int find_unit(Manager *m, sd_bus *bus, const char *path, Unit **unit, sd_bus_error *error) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering Unit *u;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering int r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(m);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(bus);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering assert(path);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (streq_ptr(path, "/org/freedesktop/systemd1/unit/self")) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering sd_bus_message *message;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering pid_t pid;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering message = sd_bus_get_current(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!message)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering r = sd_bus_creds_get_pid(creds, &pid);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering if (r < 0)

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering u = manager_get_unit_by_pid(m, pid);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering } else {

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering r = manager_load_unit_from_dbus_path(m, path, error, &u);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!u)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering *unit = u;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int bus_unit_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(path);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(interface);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(found);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen return find_unit(m, bus, path, (Unit**) found, error);

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen}

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int bus_unit_interface_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering Unit *u;

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering assert(bus);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering assert(path);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering assert(interface);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering assert(found);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering r = find_unit(m, bus, path, &u, error);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r <= 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering *found = u;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poetteringstatic int bus_unit_cgroup_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Unit *u;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(path);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(interface);

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering assert(found);

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = find_unit(m, bus, path, &u, error);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r <= 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface))

03ee5c38cb0da193dd08733fb4c0c2809cee6a99Lennart Poettering return 0;

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!unit_get_cgroup_context(u))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 0;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt *found = u;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int bus_cgroup_context_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt Manager *m = userdata;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt CGroupContext *c;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Unit *u;

4a61c3e51e96a747c30598d78ee3a24e7c569e9fZbigniew Jędrzejewski-Szmek int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(path);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(interface);

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt assert(found);

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = find_unit(m, bus, path, &u, error);

6baa7db00812437bbc87e73faa1a11b6cf631958Lennart Poettering if (r <= 0)

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering return r;

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering

56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface))

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering return 0;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering c = unit_get_cgroup_context(u);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (!c)

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt return 0;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering *found = c;

8531ae707d4d0203e83304d4af948b8169a5fce1Lennart Poettering return 1;

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt}

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int bus_exec_context_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Manager *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering ExecContext *c;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering Unit *u;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering int r;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(bus);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(path);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(interface);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(found);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(m);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering r = find_unit(m, bus, path, &u, error);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering if (r <= 0)

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering return r;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface))

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering return 0;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering c = unit_get_exec_context(u);

if (!c)

return 0;

*found = c;

return 1;

}

static int bus_kill_context_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

Manager *m = userdata;

KillContext *c;

Unit *u;

int r;

assert(bus);

assert(path);

assert(interface);

assert(found);

assert(m);

r = find_unit(m, bus, path, &u, error);

if (r <= 0)

return r;

if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface))

return 0;

c = unit_get_kill_context(u);

if (!c)

return 0;

*found = c;

return 1;

}

static int bus_job_enumerate(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {

_cleanup_free_ char **l = NULL;

Manager *m = userdata;

unsigned k = 0;

Iterator i;

Job *j;

l = new0(char*, hashmap_size(m->jobs)+1);

if (!l)

return -ENOMEM;

HASHMAP_FOREACH(j, m->jobs, i) {

l[k] = job_dbus_path(j);

if (!l[k])

return -ENOMEM;

k++;

}

assert(hashmap_size(m->jobs) == k);

*nodes = l;

l = NULL;

return k;

}

static int bus_unit_enumerate(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {

_cleanup_free_ char **l = NULL;

Manager *m = userdata;

unsigned k = 0;

Iterator i;

Unit *u;

l = new0(char*, hashmap_size(m->units)+1);

if (!l)

return -ENOMEM;

HASHMAP_FOREACH(u, m->units, i) {

l[k] = unit_dbus_path(u);

if (!l[k])

return -ENOMEM;

k++;

}

*nodes = l;

l = NULL;

return k;

}

static int bus_setup_api_vtables(Manager *m, sd_bus *bus) {

UnitType t;

int r;

assert(m);

assert(bus);

#ifdef HAVE_SELINUX

r = sd_bus_add_filter(bus, selinux_filter, m);

if (r < 0) {

log_error("Failed to add SELinux access filter: %s", strerror(-r));

return r;

}

#endif

r = sd_bus_add_object_vtable(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", bus_manager_vtable, m);

if (r < 0) {

log_error("Failed to register Manager vtable: %s", strerror(-r));

return r;

}

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/job", "org.freedesktop.systemd1.Job", bus_job_vtable, bus_job_find, m);

if (r < 0) {

log_error("Failed to register Job vtable: %s", strerror(-r));

return r;

}

r = sd_bus_add_node_enumerator(bus, "/org/freedesktop/systemd1/job", bus_job_enumerate, m);

if (r < 0) {

log_error("Failed to add job enumerator: %s", strerror(-r));

return r;

}

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", "org.freedesktop.systemd1.Unit", bus_unit_vtable, bus_unit_find, m);

if (r < 0) {

log_error("Failed to register Unit vtable: %s", strerror(-r));

return r;

}

r = sd_bus_add_node_enumerator(bus, "/org/freedesktop/systemd1/unit", bus_unit_enumerate, m);

if (r < 0) {

log_error("Failed to add job enumerator: %s", strerror(-r));

return r;

}

for (t = 0; t < _UNIT_TYPE_MAX; t++) {

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, unit_vtable[t]->bus_vtable, bus_unit_interface_find, m);

if (r < 0) {

log_error("Failed to register type specific vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r));

return r;

}

if (unit_vtable[t]->cgroup_context_offset > 0) {

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_unit_cgroup_vtable, bus_unit_cgroup_find, m);

if (r < 0) {

log_error("Failed to register control group unit vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r));

return r;

}

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_cgroup_vtable, bus_cgroup_context_find, m);

if (r < 0) {

log_error("Failed to register control group vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r));

return r;

}

}

if (unit_vtable[t]->exec_context_offset > 0) {

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_exec_vtable, bus_exec_context_find, m);

if (r < 0) {

log_error("Failed to register execute vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r));

return r;

}

}

if (unit_vtable[t]->kill_context_offset > 0) {

r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_kill_vtable, bus_kill_context_find, m);

if (r < 0) {

log_error("Failed to register kill vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r));

return r;

}

}

}

return 0;

}

static int bus_setup_disconnected_match(Manager *m, sd_bus *bus) {

int r;

assert(m);

assert(bus);

r = sd_bus_add_match(

bus,

"sender='org.freedesktop.DBus.Local',"

"type='signal',"

"path='/org/freedesktop/DBus/Local',"

"interface='org.freedesktop.DBus.Local',"

"member='Disconnected'",

signal_disconnected, m);

if (r < 0) {

log_error("Failed to register match for Disconnected message: %s", strerror(-r));

return r;

}

return 0;

}

static int bus_on_connection(sd_event_source *s, int fd, uint32_t revents, void *userdata) {

_cleanup_bus_unref_ sd_bus *bus = NULL;

_cleanup_close_ int nfd = -1;

Manager *m = userdata;

sd_id128_t id;

int r;

assert(s);

assert(m);

nfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK|SOCK_CLOEXEC);

if (nfd < 0) {

log_warning("Failed to accept private connection, ignoring: %m");

return 0;

}

if (set_size(m->private_buses) >= CONNECTIONS_MAX) {

log_warning("Too many concurrent connections, refusing");

return 0;

}

r = set_ensure_allocated(&m->private_buses, trivial_hash_func, trivial_compare_func);

if (r < 0) {

log_oom();

return 0;

}

r = sd_bus_new(&bus);

if (r < 0) {

log_warning("Failed to allocate new private connection bus: %s", strerror(-r));

return 0;

}

r = sd_bus_set_fd(bus, nfd, nfd);

if (r < 0) {

log_warning("Failed to set fd on new connection bus: %s", strerror(-r));

return 0;

}

nfd = -1;

r = bus_check_peercred(bus);

if (r < 0) {

log_warning("Incoming private connection from unprivileged client, refusing: %s", strerror(-r));

return 0;

}

assert_se(sd_id128_randomize(&id) >= 0);

r = sd_bus_set_server(bus, 1, id);

if (r < 0) {

log_warning("Failed to enable server support for new connection bus: %s", strerror(-r));

return 0;

}

r = sd_bus_start(bus);

if (r < 0) {

log_warning("Failed to start new connection bus: %s", strerror(-r));

return 0;

}

r = sd_bus_attach_event(bus, m->event, SD_EVENT_PRIORITY_NORMAL);

if (r < 0) {

log_warning("Failed to attach new connection bus to event loop: %s", strerror(-r));

return 0;

}

if (m->running_as == SYSTEMD_SYSTEM) {

/* When we run as system instance we get the Released

r = sd_bus_add_match(

bus,

"type='signal',"

"interface='org.freedesktop.systemd1.Agent',"

"member='Released',"

"path='/org/freedesktop/systemd1/agent'",

signal_agent_released, m);

if (r < 0) {

log_warning("Failed to register Released match on new connection bus: %s", strerror(-r));

return 0;

}

}

r = bus_setup_disconnected_match(m, bus);

if (r < 0)

return 0;

r = bus_setup_api_vtables(m, bus);

if (r < 0) {

log_warning("Failed to set up API vtables on new connection bus: %s", strerror(-r));

return 0;

}

r = set_put(m->private_buses, bus);

if (r < 0) {

log_warning("Failed to add new conenction bus to set: %s", strerror(-r));

return 0;

}

bus = NULL;

log_debug("Accepted new private connection.");

return 0;

}

static int bus_list_names(Manager *m, sd_bus *bus) {

_cleanup_strv_free_ char **names = NULL;

char **i;

int r;

assert(m);

assert(bus);

r = sd_bus_list_names(bus, &names, NULL);

if (r < 0) {

log_error("Failed to get initial list of names: %s", strerror(-r));

return r;

}

/* This is a bit hacky, we say the owner of the name is the

STRV_FOREACH(i, names)

manager_dispatch_bus_name_owner_changed(m, *i, NULL, *i);

return 0;

}

static int bus_setup_api(Manager *m, sd_bus *bus) {

int r;

assert(m);

assert(bus);

r = bus_setup_api_vtables(m, bus);

if (r < 0)

return r;

r = sd_bus_add_match(

bus,

"type='signal',"

"sender='org.freedesktop.DBus',"

"path='/org/freedesktop/DBus',"

"interface='org.freedesktop.DBus',"

"member='NameOwnerChanged'",

signal_name_owner_changed, m);

if (r < 0)

log_warning("Failed to subscribe to NameOwnerChanged signal: %s", strerror(-r));

r = sd_bus_add_match(

bus,

"type='signal',"

"sender='org.freedesktop.DBus',"

"path='/org/freedesktop/DBus',"

"interface='org.freedesktop.systemd1.Activator',"

"member='ActivationRequest'",

signal_activation_request, m);

if (r < 0)

log_warning("Failed to subscribe to activation signal: %s", strerror(-r));

/* Allow replacing of our name, to ease implementation of

r = sd_bus_request_name(bus,"org.freedesktop.systemd1", SD_BUS_NAME_REPLACE_EXISTING|SD_BUS_NAME_ALLOW_REPLACEMENT);

if (r < 0) {

log_error("Failed to register name: %s", strerror(-r));

return r;

}

bus_list_names(m, bus);

log_debug("Successfully connected to API bus.");

return 0;

}

static int bus_init_api(Manager *m) {

_cleanup_bus_unref_ sd_bus *bus = NULL;

int r;

if (m->api_bus)

return 0;

/* The API and system bus is the same if we are running in system mode */

if (m->running_as == SYSTEMD_SYSTEM && m->system_bus)

bus = sd_bus_ref(m->system_bus);

else {

if (m->running_as == SYSTEMD_SYSTEM)

r = sd_bus_open_system(&bus);

else

r = sd_bus_open_user(&bus);

if (r < 0) {

log_debug("Failed to connect to API bus, retrying later...");

return 0;

}

r = sd_bus_attach_event(bus, m->event, SD_EVENT_PRIORITY_NORMAL);

if (r < 0) {

log_error("Failed to attach API bus to event loop: %s", strerror(-r));

return 0;

}

r = bus_setup_disconnected_match(m, bus);

if (r < 0)

return 0;

}

r = bus_setup_api(m, bus);

if (r < 0) {

log_error("Failed to set up API bus: %s", strerror(-r));

return 0;

}

m->api_bus = bus;

bus = NULL;

return 0;

}

static int bus_setup_system(Manager *m, sd_bus *bus) {

int r;

assert(m);

assert(bus);

if (m->running_as == SYSTEMD_SYSTEM)

return 0;

/* If we are a user instance we get the Released message via

r = sd_bus_add_match(

bus,

"type='signal',"

"interface='org.freedesktop.systemd1.Agent',"

"member='Released',"

"path='/org/freedesktop/systemd1/agent'",

signal_agent_released, m);

if (r < 0)

log_warning("Failed to register Released match on system bus: %s", strerror(-r));

log_debug("Successfully connected to system bus.");

return 0;

}

static int bus_init_system(Manager *m) {

_cleanup_bus_unref_ sd_bus *bus = NULL;

int r;

if (m->system_bus)

return 0;

/* The API and system bus is the same if we are running in system mode */

if (m->running_as == SYSTEMD_SYSTEM && m->api_bus) {

m->system_bus = sd_bus_ref(m->api_bus);

return 0;

}

r = sd_bus_open_system(&bus);

if (r < 0) {

log_debug("Failed to connect to system bus, retrying later...");

return 0;

}

r = bus_setup_disconnected_match(m, bus);

if (r < 0)

return 0;

r = sd_bus_attach_event(bus, m->event, SD_EVENT_PRIORITY_NORMAL);

if (r < 0) {

log_error("Failed to attach system bus to event loop: %s", strerror(-r));

return 0;

}

r = bus_setup_system(m, bus);

if (r < 0) {

log_error("Fauiled to set up system bus: %s", strerror(-r));

return 0;

}

m->system_bus = bus;

bus = NULL;

return 0;

}

static int bus_init_private(Manager *m) {

_cleanup_close_ int fd = -1;

union sockaddr_union sa = {

.un.sun_family = AF_UNIX

};

sd_event_source *s;

socklen_t salen;

int r;

assert(m);

if (m->private_listen_fd >= 0)

return 0;

/* We don't need the private socket if we have kdbus */

if (m->kdbus_fd >= 0)

return 0;

if (m->running_as == SYSTEMD_SYSTEM) {

/* We want the private bus only when running as init */

if (getpid() != 1)

return 0;

strcpy(sa.un.sun_path, "/run/systemd/private");

salen = offsetof(union sockaddr_union, un.sun_path) + sizeof("/run/systemd/private") - 1;

} else {

size_t left = sizeof(sa.un.sun_path);

char *p = sa.un.sun_path;

const char *e;

e = secure_getenv("XDG_RUNTIME_DIR");

if (!e) {

log_error("Failed to determine XDG_RUNTIME_DIR");

return -EHOSTDOWN;

}

left = strpcpy(&p, left, e);

left = strpcpy(&p, left, "/systemd/private");

salen = sizeof(sa.un) - left;

mkdir_parents_label(sa.un.sun_path, 0755);

}

unlink(sa.un.sun_path);

fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);

if (fd < 0) {

log_error("Failed to allocate private socket: %m");

return -errno;

}

r = bind(fd, &sa.sa, salen);

if (r < 0) {

log_error("Failed to bind private socket: %m");

return -errno;

}

r = listen(fd, SOMAXCONN);

if (r < 0) {

log_error("Failed to make private socket listening: %m");

return -errno;

}

r = sd_event_add_io(m->event, &s, fd, EPOLLIN, bus_on_connection, m);

if (r < 0) {

log_error("Failed to allocate event source: %s", strerror(-r));

return r;

}

m->private_listen_fd = fd;

m->private_listen_event_source = s;

fd = -1;

log_debug("Successfully created private D-Bus server.");

return 0;

}

int bus_init(Manager *m, bool try_bus_connect) {

int r;

if (try_bus_connect) {

r = bus_init_system(m);

if (r < 0)

return r;

r = bus_init_api(m);

if (r < 0)

return r;

}

r = bus_init_private(m);

if (r < 0)

return r;

return 0;

}

static void destroy_bus(Manager *m, sd_bus **bus) {

Iterator i;

Job *j;

assert(m);

assert(bus);

if (!*bus)

return;

/* Get rid of tracked clients on this bus */

if (m->subscribed && sd_bus_track_get_bus(m->subscribed) == *bus)

m->subscribed = sd_bus_track_unref(m->subscribed);

HASHMAP_FOREACH(j, m->jobs, i)

if (j->subscribed && sd_bus_track_get_bus(j->subscribed) == *bus)

j->subscribed = sd_bus_track_unref(j->subscribed);

/* Get rid of queued message on this bus */

if (m->queued_message_bus == *bus) {

m->queued_message_bus = sd_bus_unref(m->queued_message_bus);

if (m->queued_message)

m->queued_message = sd_bus_message_unref(m->queued_message);

}

/* Possibly flush unwritten data, but only if we are

if (m->running_as != SYSTEMD_SYSTEM)

sd_bus_flush(*bus);

/* And destroy the object */

sd_bus_close(*bus);

*bus = sd_bus_unref(*bus);

}

void bus_done(Manager *m) {

sd_bus *b;

assert(m);

if (m->api_bus)

destroy_bus(m, &m->api_bus);

if (m->system_bus)

destroy_bus(m, &m->system_bus);

while ((b = set_steal_first(m->private_buses)))

destroy_bus(m, &b);

set_free(m->private_buses);

m->private_buses = NULL;

m->subscribed = sd_bus_track_unref(m->subscribed);

strv_free(m->deserialized_subscribed);

m->deserialized_subscribed = NULL;

if (m->private_listen_event_source)

m->private_listen_event_source = sd_event_source_unref(m->private_listen_event_source);

if (m->private_listen_fd >= 0) {

close_nointr_nofail(m->private_listen_fd);

m->private_listen_fd = -1;

}

}

int bus_fdset_add_all(Manager *m, FDSet *fds) {

Iterator i;

sd_bus *b;

int fd;

assert(m);

assert(fds);

/* When we are about to reexecute we add all D-Bus fds to the

if (m->api_bus) {

fd = sd_bus_get_fd(m->api_bus);

if (fd >= 0) {

fd = fdset_put_dup(fds, fd);

if (fd < 0)

return fd;

}

}

SET_FOREACH(b, m->private_buses, i) {

fd = sd_bus_get_fd(b);

if (fd >= 0) {

fd = fdset_put_dup(fds, fd);

if (fd < 0)

return fd;

}

}

/* We don't offer any APIs on the system bus (well, unless it

return 0;

}

int bus_foreach_bus(

Manager *m,

sd_bus_track *subscribed2,

int (*send_message)(sd_bus *bus, void *userdata),

void *userdata) {

Iterator i;

sd_bus *b;

int r, ret = 0;

/* Send to all direct busses, unconditionally */

SET_FOREACH(b, m->private_buses, i) {

r = send_message(b, userdata);

if (r < 0)

ret = r;

}

/* Send to API bus, but only if somebody is subscribed */

if (sd_bus_track_count(m->subscribed) > 0 ||

sd_bus_track_count(subscribed2) > 0) {

r = send_message(m->api_bus, userdata);

if (r < 0)

ret = r;

}

return ret;

}

void bus_track_serialize(sd_bus_track *t, FILE *f) {

const char *n;

assert(t);

assert(f);

for (n = sd_bus_track_first(t); n; n = sd_bus_track_next(t))

fprintf(f, "subscribed=%s\n", n);

}

int bus_track_deserialize_item(char ***l, const char *line) {

const char *e;

assert(l);

assert(line);

e = startswith(line, "subscribed=");

if (!e)

return 0;

return strv_extend(l, e);

}

int bus_track_coldplug(Manager *m, sd_bus_track **t, char ***l) {

int r = 0;

assert(m);

assert(t);

assert(l);

if (!strv_isempty(*l) && m->api_bus) {

char **i;

if (!*t) {

r = sd_bus_track_new(m->api_bus, t, NULL, NULL);

if (r < 0)

return r;

}

r = 0;

STRV_FOREACH(i, *l) {

int k;

k = sd_bus_track_add_name(*t, *i);

if (k < 0)

r = k;

}

}

strv_free(*l);

*l = NULL;

return r;

}