X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fdbus-manager.c;h=9b0a600221725a4da78492adbe1ead2abc26d088;hb=165e1b1a83b05a68d0f5f407667872c45c712b73;hp=d4c9e8f0e2cfa91863f98cf1b1d6297fd9efae49;hpb=5b6319dceedd81f3f1ce7eb70ea5defaef43bcec;p=elogind.git
diff --git a/src/dbus-manager.c b/src/dbus-manager.c
index d4c9e8f0e..9b0a60022 100644
--- a/src/dbus-manager.c
+++ b/src/dbus-manager.c
@@ -1,4 +1,4 @@
-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
@@ -25,6 +25,7 @@
#include "log.h"
#include "dbus-manager.h"
#include "strv.h"
+#include "bus-errors.h"
#define BUS_MANAGER_INTERFACE \
" \n" \
@@ -32,6 +33,10 @@
" \n" \
" \n" \
" \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
" \n" \
" \n" \
" \n" \
@@ -56,13 +61,32 @@
" \n" \
" \n" \
" \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
" \n" \
" \n" \
" \n" \
" \n" \
" \n" \
+ " \n" \
" \n" \
- " \n" \
+ " \n" \
" \n" \
" \n" \
" \n" \
@@ -72,7 +96,7 @@
" \n" \
" \n" \
" \n" \
- " \n" \
+ " \n" \
" \n" \
" \n" \
" \n" \
@@ -103,12 +127,22 @@
" " \
" \n" \
" \n" \
- " \n" \
+ " \n" \
" \n" \
" \n" \
" \n" \
" \n" \
" \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
+ " \n" \
" \n"
#define INTROSPECTION_BEGIN \
@@ -116,6 +150,7 @@
"\n" \
BUS_MANAGER_INTERFACE \
BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
BUS_INTROSPECTABLE_INTERFACE
#define INTROSPECTION_END \
@@ -185,18 +220,42 @@ static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char
return 0;
}
-static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
+static const char *message_get_sender_with_fallback(DBusMessage *m) {
+ const char *s;
+
+ assert(m);
+
+ if ((s = dbus_message_get_sender(m)))
+ return s;
+
+ /* When the message came in from a direct connection the
+ * message will have no sender. We fix that here. */
+
+ return ":no-sender";
+}
+
+static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
Manager *m = data;
const BusProperty properties[] = {
- { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
- { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
- { "org.freedesktop.systemd1.Manager", "BootTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
- { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
- { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
- { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
- { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
- { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
+ { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
+ { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
+ { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
+ { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
+ { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
+ { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
+ { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
+ { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
+ { "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
+ { "org.freedesktop.systemd1.Manager", "ShowStatus", bus_property_append_bool, "b", &m->show_status },
+ { "org.freedesktop.systemd1.Manager", "SysVConsole", bus_property_append_bool, "b", &m->sysv_console },
+ { "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
+ { "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
+ { "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
+ { "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
+ { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
+ { "org.freedesktop.systemd1.Manager", "MountAuto", bus_property_append_bool, "b", &m->mount_auto },
+ { "org.freedesktop.systemd1.Manager", "SwapAuto", bus_property_append_bool, "b", &m->swap_auto },
{ NULL, NULL, NULL, NULL, NULL }
};
@@ -205,6 +264,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
DBusMessage *reply = NULL;
char * path = NULL;
JobType job_type = _JOB_TYPE_INVALID;
+ bool reload_if_possible = false;
assert(connection);
assert(message);
@@ -212,11 +272,6 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
dbus_error_init(&error);
- log_debug("Got D-Bus request: %s.%s() on %s",
- dbus_message_get_interface(message),
- dbus_message_get_member(message),
- dbus_message_get_path(message));
-
if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
const char *name;
Unit *u;
@@ -226,10 +281,12 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
&error,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
- if (!(u = manager_get_unit(m, name)))
- return bus_send_error_reply(m, message, NULL, -ENOENT);
+ if (!(u = manager_get_unit(m, name))) {
+ dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
+ return bus_send_error_reply(m, connection, message, &error, -ENOENT);
+ }
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
@@ -242,7 +299,33 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID))
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
+ Unit *u;
+ uint32_t pid;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &pid,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
+
+ if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
+ dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
+ return bus_send_error_reply(m, connection, message, &error, -ENOENT);
+ }
+ if (!(reply = dbus_message_new_method_return(message)))
+ goto oom;
+
+ if (!(path = unit_dbus_path(u)))
+ goto oom;
+
+ if (!dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID))
+ goto oom;
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
const char *name;
Unit *u;
@@ -252,10 +335,10 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
&error,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
- if ((r = manager_load_unit(m, name, NULL, &u)) < 0)
- return bus_send_error_reply(m, message, NULL, r);
+ if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
+ return bus_send_error_reply(m, connection, message, &error, r);
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
@@ -277,7 +360,15 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
job_type = JOB_RELOAD;
else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
job_type = JOB_RESTART;
- else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
+ else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
+ job_type = JOB_TRY_RESTART;
+ else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
+ reload_if_possible = true;
+ job_type = JOB_RESTART;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
+ reload_if_possible = true;
+ job_type = JOB_TRY_RESTART;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
uint32_t id;
Job *j;
@@ -286,10 +377,12 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
&error,
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
- if (!(j = manager_get_job(m, id)))
- return bus_send_error_reply(m, message, NULL, -ENOENT);
+ if (!(j = manager_get_job(m, id))) {
+ dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
+ return bus_send_error_reply(m, connection, message, &error, -ENOENT);
+ }
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
@@ -310,6 +403,34 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenance")) {
+
+ manager_reset_maintenance(m);
+
+ if (!(reply = dbus_message_new_method_return(message)))
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenanceUnit")) {
+ const char *name;
+ Unit *u;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
+
+ if (!(u = manager_get_unit(m, name))) {
+ dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
+ return bus_send_error_reply(m, connection, message, &error, -ENOENT);
+ }
+
+ unit_reset_maintenance(u);
+
+ if (!(reply = dbus_message_new_method_return(message)))
+ goto oom;
+
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
DBusMessageIter iter, sub;
Iterator i;
@@ -321,14 +442,15 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
dbus_message_iter_init_append(reply, &iter);
- if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sssssouso)", &sub))
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
goto oom;
HASHMAP_FOREACH_KEY(u, k, m->units, i) {
char *u_path, *j_path;
- const char *description, *load_state, *active_state, *sub_state, *sjob_type;
+ const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
DBusMessageIter sub2;
uint32_t job_id;
+ Unit *f;
if (k != u->meta.id)
continue;
@@ -341,6 +463,9 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
active_state = unit_active_state_to_string(unit_active_state(u));
sub_state = unit_sub_state_to_string(u);
+ f = unit_following(u);
+ following = f ? f->meta.id : "";
+
if (!(u_path = unit_dbus_path(u)))
goto oom;
@@ -364,6 +489,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
@@ -442,14 +568,25 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
char *client;
+ Set *s;
- if (!(client = strdup(dbus_message_get_sender(message))))
- goto oom;
+ if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
+ if (!(s = set_new(string_hash_func, string_compare_func)))
+ goto oom;
- r = set_put(m->subscribed, client);
+ if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
+ set_free(s);
+ goto oom;
+ }
+ }
- if (r < 0)
- return bus_send_error_reply(m, message, NULL, r);
+ if (!(client = strdup(message_get_sender_with_fallback(message))))
+ goto oom;
+
+ if ((r = set_put(s, client)) < 0) {
+ free(client);
+ return bus_send_error_reply(m, connection, message, NULL, r);
+ }
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
@@ -457,8 +594,10 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
char *client;
- if (!(client = set_remove(m->subscribed, (char*) dbus_message_get_sender(message))))
- return bus_send_error_reply(m, message, NULL, -ENOENT);
+ if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
+ dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
+ return bus_send_error_reply(m, connection, message, &error, -ENOENT);
+ }
free(client);
@@ -504,13 +643,13 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
DBUS_TYPE_STRING, &name,
DBUS_TYPE_BOOLEAN, &cleanup,
DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
if (name && name[0] == 0)
name = NULL;
- if ((r = snapshot_create(m, name, cleanup, &s)) < 0)
- return bus_send_error_reply(m, message, NULL, r);
+ if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
+ return bus_send_error_reply(m, connection, message, &error, r);
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
@@ -597,6 +736,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
if (!(m->queued_message = dbus_message_new_method_return(message)))
goto oom;
+ m->queued_message_connection = connection;
m->exit_code = MANAGER_RELOAD;
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
@@ -608,8 +748,10 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
- if (m->running_as == MANAGER_INIT)
- return bus_send_error_reply(m, message, NULL, -ENOTSUP);
+ if (m->running_as == MANAGER_SYSTEM) {
+ dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for session managers.");
+ return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
+ }
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
@@ -623,7 +765,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
if (r == -ENOMEM)
goto oom;
- return bus_send_error_reply(m, message, NULL, r);
+ return bus_send_error_reply(m, connection, message, NULL, r);
}
e = strv_env_merge(2, m->environment, l);
@@ -647,7 +789,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
if (r == -ENOMEM)
goto oom;
- return bus_send_error_reply(m, message, NULL, r);
+ return bus_send_error_reply(m, connection, message, NULL, r);
}
e = strv_env_delete(m->environment, 1, l);
@@ -663,8 +805,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
m->environment = e;
} else
- return bus_default_message_handler(m, message, NULL, properties);
-
+ return bus_default_message_handler(m, connection, message, NULL, properties);
if (job_type != _JOB_TYPE_INVALID) {
const char *name, *smode;
@@ -678,19 +819,38 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &smode,
DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
+
+ if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
+ dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
+ return bus_send_error_reply(m, connection, message, &error, -EINVAL);
+ }
- if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID)
- return bus_send_error_reply(m, message, NULL, -EINVAL);
+ if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
+ return bus_send_error_reply(m, connection, message, &error, r);
- if ((r = manager_load_unit(m, name, NULL, &u)) < 0)
- return bus_send_error_reply(m, message, NULL, r);
+ if (reload_if_possible && unit_can_reload(u)) {
+ if (job_type == JOB_RESTART)
+ job_type = JOB_RELOAD_OR_START;
+ else if (job_type == JOB_TRY_RESTART)
+ job_type = JOB_RELOAD;
+ }
+
+ if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
+ (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
+ ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
+ (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
+ dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
+ return bus_send_error_reply(m, connection, message, &error, -EPERM);
+ }
- if (job_type == JOB_START && u->meta.only_by_dependency)
- return bus_send_error_reply(m, message, NULL, -EPERM);
+ if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
+ return bus_send_error_reply(m, connection, message, &error, r);
+
+ if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
+ goto oom;
- if ((r = manager_add_job(m, job_type, u, mode, true, &j)) < 0)
- return bus_send_error_reply(m, message, NULL, r);
+ j->bus = connection;
if (!(reply = dbus_message_new_method_return(message)))
goto oom;