-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include "dbus-swap.h"
#include "dbus-timer.h"
#include "dbus-path.h"
+#include "bus-errors.h"
+#include "special.h"
#define CONNECTIONS_MAX 52
static void bus_done_api(Manager *m);
static void bus_done_system(Manager *m);
static void bus_done_private(Manager *m);
+static void shutdown_connection(Manager *m, DBusConnection *c);
static void bus_dispatch_status(DBusConnection *bus, DBusDispatchStatus status, void *data) {
Manager *m = data;
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_get_type(message) == DBUS_MESSAGE_TYPE_METHOD_CALL ||
+ dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL)
+ 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_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
- log_error("Warning! API D-Bus connection terminated.");
+ log_debug("API D-Bus connection terminated.");
bus_done_api(m);
} else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
DBUS_TYPE_INVALID))
log_error("Failed to parse NameOwnerChanged message: %s", error.message);
else {
- if (set_remove(m->subscribed, (char*) name))
- log_debug("Subscription client vanished: %s (left: %u)", name, set_size(m->subscribed));
+ if (set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) name))
+ log_debug("Subscription client vanished: %s (left: %u)", name, set_size(BUS_CONNECTION_SUBSCRIBED(m, connection)));
if (old_owner[0] == 0)
old_owner = NULL;
log_debug("Got D-Bus activation request for %s", name);
- r = manager_load_unit(m, name, NULL, &u);
+ if (manager_unit_pending_inactive(m, SPECIAL_DBUS_SERVICE) ||
+ manager_unit_pending_inactive(m, SPECIAL_DBUS_SOCKET)) {
+ r = -EADDRNOTAVAIL;
+ dbus_set_error(&error, BUS_ERROR_SHUTTING_DOWN, "Refusing activation, D-Bus is shutting down.");
+ } else {
+ r = manager_load_unit(m, name, NULL, &error, &u);
- if (r >= 0 && u->meta.only_by_dependency)
- r = -EPERM;
+ if (r >= 0 && u->meta.refuse_manual_start)
+ r = -EPERM;
- if (r >= 0)
- r = manager_add_job(m, JOB_START, u, JOB_REPLACE, true, NULL);
+ if (r >= 0)
+ r = manager_add_job(m, JOB_START, u, JOB_REPLACE, true, &error, NULL);
+ }
if (r < 0) {
const char *id, *text;
- log_warning("D-Bus activation failed for %s: %s", name, strerror(-r));
+ log_debug("D-Bus activation failed for %s: %s", name, strerror(-r));
if (!(reply = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Activator", "ActivationFailure")))
goto oom;
- id = error_to_dbus(r);
- text = strerror(-r);
+ id = error.name ? error.name : error_to_dbus(r);
+ text = bus_error(&error, r);
if (!dbus_message_set_destination(reply, DBUS_SERVICE_DBUS) ||
!dbus_message_append_args(reply,
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 (m->api_bus != m->system_bus &&
+ (dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_METHOD_CALL ||
+ dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL))
+ log_debug("Got D-Bus request on system bus: %s.%s() on %s",
+ dbus_message_get_interface(message),
+ dbus_message_get_member(message),
+ dbus_message_get_path(message));
if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
- log_error("Warning! System D-Bus connection terminated.");
+ log_debug("System D-Bus connection terminated.");
bus_done_system(m);
- } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
+ } else if (m->running_as != MANAGER_SYSTEM &&
+ dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
+
const char *cgroup;
if (!dbus_message_get_args(message, &error,
static DBusHandlerResult private_bus_message_filter(DBusConnection *connection, DBusMessage *message, void *data) {
Manager *m = data;
+ DBusError error;
assert(connection);
assert(message);
assert(m);
- /* 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)); */
+ dbus_error_init(&error);
+
+ if (dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_METHOD_CALL ||
+ dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL)
+ 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_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
- set_remove(m->bus_connections, connection);
- set_remove(m->bus_connections_for_dispatch, connection);
- dbus_connection_unref(connection);
+ if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected"))
+ shutdown_connection(m, connection);
+ else if (m->running_as == MANAGER_SYSTEM &&
+ dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
+
+ const char *cgroup;
+
+ if (!dbus_message_get_args(message, &error,
+ DBUS_TYPE_STRING, &cgroup,
+ DBUS_TYPE_INVALID))
+ log_error("Failed to parse Released message: %s", error.message);
+ else
+ cgroup_notify_empty(m, cgroup);
+
+ /* Forward the message to the system bus, so that user
+ * instances are notified as well */
+
+ if (m->system_bus)
+ dbus_connection_send(m->system_bus, message, NULL);
}
+ dbus_error_free(&error);
+
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
* dispatch any D-Bus messages, so that we won't end
* up wanting to queue another message. */
- if (m->api_bus)
- if (!dbus_connection_send(m->api_bus, m->queued_message, NULL))
+ if (m->queued_message_connection)
+ if (!dbus_connection_send(m->queued_message_connection, m->queued_message, NULL))
return 0;
dbus_message_unref(m->queued_message);
m->queued_message = NULL;
+ m->queued_message_connection = NULL;
}
if ((c = set_first(m->bus_connections_for_dispatch))) {
static int bus_init_system(Manager *m) {
DBusError error;
- char *id;
int r;
assert(m);
goto fail;
}
- dbus_bus_add_match(m->system_bus,
- "type='signal',"
- "interface='org.freedesktop.systemd1.Agent',"
- "member='Released',"
- "path='/org/freedesktop/systemd1/agent'",
- &error);
-
- if (dbus_error_is_set(&error)) {
- log_error("Failed to register match: %s", error.message);
- r = -EIO;
- goto fail;
+ if (m->running_as != MANAGER_SYSTEM) {
+ dbus_bus_add_match(m->system_bus,
+ "type='signal',"
+ "interface='org.freedesktop.systemd1.Agent',"
+ "member='Released',"
+ "path='/org/freedesktop/systemd1/agent'",
+ &error);
+
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to register match: %s", error.message);
+ r = -EIO;
+ goto fail;
+ }
}
- log_debug("Successfully connected to system D-Bus bus %s as %s",
- strnull((id = dbus_connection_get_server_id(m->system_bus))),
- strnull(dbus_bus_get_unique_name(m->system_bus)));
- dbus_free(id);
+ if (m->api_bus != m->system_bus) {
+ char *id;
+ log_debug("Successfully connected to system D-Bus bus %s as %s",
+ strnull((id = dbus_connection_get_server_id(m->system_bus))),
+ strnull(dbus_bus_get_unique_name(m->system_bus)));
+ dbus_free(id);
+ }
return 0;
static int bus_init_api(Manager *m) {
DBusError error;
- char *id;
int r;
assert(m);
if (m->running_as == MANAGER_SYSTEM && m->system_bus)
m->api_bus = m->system_bus;
else {
- if (!(m->api_bus = dbus_bus_get_private(m->running_as == MANAGER_SESSION ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error))) {
+ if (!(m->api_bus = dbus_bus_get_private(m->running_as == MANAGER_USER ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error))) {
log_debug("Failed to get API D-Bus connection, retrying later: %s", error.message);
r = 0;
goto fail;
if ((r = query_name_list(m)) < 0)
goto fail;
- log_debug("Successfully connected to API D-Bus bus %s as %s",
- strnull((id = dbus_connection_get_server_id(m->api_bus))),
- strnull(dbus_bus_get_unique_name(m->api_bus)));
- dbus_free(id);
-
- if (!m->subscribed)
- if (!(m->subscribed = set_new(string_hash_func, string_compare_func))) {
- log_error("Not enough memory");
- r = -ENOMEM;
- goto fail;
- }
+ if (m->api_bus != m->system_bus) {
+ char *id;
+ log_debug("Successfully connected to API D-Bus bus %s as %s",
+ strnull((id = dbus_connection_get_server_id(m->api_bus))),
+ strnull(dbus_bus_get_unique_name(m->api_bus)));
+ dbus_free(id);
+ }
return 0;
return 0;
/* We want the private bus only when running as init */
- if (m->running_as != MANAGER_SYSTEM)
+ if (getpid() != 1)
return 0;
if (!(m->private_bus = dbus_server_listen("unix:abstract=/org/freedesktop/systemd1/private", &error))) {
dbus_server_set_new_connection_function(m->private_bus, bus_new_connection, m, NULL);
- log_debug("Successfully create private D-Bus server.");
+ log_debug("Successfully created private D-Bus server.");
return 0;
return r;
}
-int bus_init(Manager *m) {
+int bus_init(Manager *m, bool try_bus_connect) {
int r;
if (set_ensure_allocated(&m->bus_connections, trivial_hash_func, trivial_compare_func) < 0 ||
return -ENOMEM;
}
- if ((r = bus_init_system(m)) < 0 ||
- (r = bus_init_api(m)) < 0 ||
- (r = bus_init_private(m)) < 0)
+ if (m->subscribed_data_slot < 0)
+ if (!dbus_connection_allocate_data_slot(&m->subscribed_data_slot)) {
+ log_error("Not enough memory");
+ return -ENOMEM;
+ }
+
+ if (try_bus_connect) {
+ if ((r = bus_init_system(m)) < 0 ||
+ (r = bus_init_api(m)) < 0)
+ return r;
+ }
+
+ if ((r = bus_init_private(m)) < 0)
return r;
return 0;
}
-static void shutdown_connection(DBusConnection *c) {
+static void shutdown_connection(Manager *m, DBusConnection *c) {
+ Set *s;
+ Job *j;
+ Iterator i;
+
+ HASHMAP_FOREACH(j, m->jobs, i)
+ if (j->bus == c) {
+ free(j->bus_client);
+ j->bus_client = NULL;
+
+ j->bus = NULL;
+ }
+
+ set_remove(m->bus_connections, c);
+ set_remove(m->bus_connections_for_dispatch, c);
+
+ if ((s = BUS_CONNECTION_SUBSCRIBED(m, c))) {
+ char *t;
+
+ while ((t = set_steal_first(s)))
+ free(t);
+
+ set_free(s);
+ }
+
+ if (m->queued_message_connection == c) {
+ m->queued_message_connection = NULL;
+
+ if (m->queued_message) {
+ dbus_message_unref(m->queued_message);
+ m->queued_message = NULL;
+ }
+ }
+
dbus_connection_set_dispatch_status_function(c, NULL, NULL, NULL);
dbus_connection_flush(c);
dbus_connection_close(c);
if (m->system_bus == m->api_bus)
m->system_bus = NULL;
- set_remove(m->bus_connections, m->api_bus);
- shutdown_connection(m->api_bus);
+ shutdown_connection(m, m->api_bus);
m->api_bus = NULL;
}
- if (m->subscribed) {
- char *c;
-
- while ((c = set_steal_first(m->subscribed)))
- free(c);
-
- set_free(m->subscribed);
- m->subscribed = NULL;
- }
if (m->queued_message) {
dbus_message_unref(m->queued_message);
bus_done_api(m);
if (m->system_bus) {
- set_remove(m->bus_connections, m->system_bus);
- shutdown_connection(m->system_bus);
+ shutdown_connection(m, m->system_bus);
m->system_bus = NULL;
}
}
bus_done_private(m);
while ((c = set_steal_first(m->bus_connections)))
- shutdown_connection(c);
+ shutdown_connection(m, c);
while ((c = set_steal_first(m->bus_connections_for_dispatch)))
- shutdown_connection(c);
+ shutdown_connection(m, c);
set_free(m->bus_connections);
set_free(m->bus_connections_for_dispatch);
if (m->name_data_slot >= 0)
dbus_pending_call_free_data_slot(&m->name_data_slot);
+
+ if (m->subscribed_data_slot >= 0)
+ dbus_connection_free_data_slot(&m->subscribed_data_slot);
}
static void query_pid_pending_cb(DBusPendingCall *pending, void *userdata) {
dbus_error_init(&error);
- assert_se(name = dbus_pending_call_get_data(pending, m->name_data_slot));
+ assert_se(name = BUS_PENDING_CALL_NAME(m, pending));
assert_se(reply = dbus_pending_call_steal_reply(pending));
switch (dbus_message_get_type(reply)) {
if (!dbus_message_iter_close_container(&iter, &sub))
goto oom;
}
+
} else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Properties", "GetAll") && properties) {
const char *interface;
const BusProperty *p;
DBusMessageIter iter, sub, sub2, sub3;
- bool any = false;
if (!dbus_message_get_args(
message,
goto oom;
for (p = properties; p->property; p++) {
- if (!streq(p->interface, interface))
+ if (interface[0] && !streq(p->interface, interface))
continue;
if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_DICT_ENTRY, NULL, &sub2) ||
if (!dbus_message_iter_close_container(&sub2, &sub3) ||
!dbus_message_iter_close_container(&sub, &sub2))
goto oom;
-
- any = true;
}
if (!dbus_message_iter_close_container(&iter, &sub))
return DBUS_ERROR_FILE_EXISTS;
case -ETIMEDOUT:
+ case -ETIME:
return DBUS_ERROR_TIMEOUT;
case -EIO:
return DBUS_ERROR_FAILED;
}
-DBusHandlerResult bus_send_error_reply(Manager *m, DBusConnection *c, DBusMessage *message, DBusError *bus_error, int error) {
+DBusHandlerResult bus_send_error_reply(Manager *m, DBusConnection *c, DBusMessage *message, DBusError *berror, int error) {
DBusMessage *reply = NULL;
const char *name, *text;
- if (bus_error && dbus_error_is_set(bus_error)) {
- name = bus_error->name;
- text = bus_error->message;
+ if (berror && dbus_error_is_set(berror)) {
+ name = berror->name;
+ text = berror->message;
} else {
name = error_to_dbus(error);
text = strerror(-error);
dbus_message_unref(reply);
- if (bus_error)
- dbus_error_free(bus_error);
+ if (berror)
+ dbus_error_free(berror);
return DBUS_HANDLER_RESULT_HANDLED;
if (reply)
dbus_message_unref(reply);
- if (bus_error)
- dbus_error_free(bus_error);
+ if (berror)
+ dbus_error_free(berror);
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return 0;
}
+int bus_property_append_size(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ uint64_t u;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(data);
+
+ u = (uint64_t) *(size_t*) data;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int bus_property_append_ul(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ uint64_t u;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(data);
+
+ u = (uint64_t) *(unsigned long*) data;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
+ return -ENOMEM;
+
+ return 0;
+}
+
int bus_parse_strv(DBusMessage *m, char ***_l) {
DBusMessageIter iter, sub;
unsigned n = 0, i = 0;
return 0;
}
+
+bool bus_has_subscriber(Manager *m) {
+ Iterator i;
+ DBusConnection *c;
+
+ assert(m);
+
+ SET_FOREACH(c, m->bus_connections_for_dispatch, i)
+ if (bus_connection_has_subscriber(m, c))
+ return true;
+
+ SET_FOREACH(c, m->bus_connections, i)
+ if (bus_connection_has_subscriber(m, c))
+ return true;
+
+ return false;
+}
+
+bool bus_connection_has_subscriber(Manager *m, DBusConnection *c) {
+ assert(m);
+ assert(c);
+
+ return !set_isempty(BUS_CONNECTION_SUBSCRIBED(m, c));
+}
+
+DBusMessage* bus_properties_changed_new(const char *path, const char *interface, const char *properties) {
+ DBusMessage *m;
+ DBusMessageIter iter, sub;
+ const char *i;
+
+ assert(interface);
+ assert(properties);
+
+ if (!(m = dbus_message_new_signal(path, "org.freedesktop.DBus.Properties", "PropertiesChanged")))
+ goto oom;
+
+ dbus_message_iter_init_append(m, &iter);
+
+ /* We won't send any property values, since they might be
+ * large and sometimes not cheap to generated */
+
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &interface) ||
+ !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "{sv}", &sub) ||
+ !dbus_message_iter_close_container(&iter, &sub) ||
+ !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub))
+ goto oom;
+
+ NULSTR_FOREACH(i, properties)
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &i))
+ goto oom;
+
+ if (!dbus_message_iter_close_container(&iter, &sub))
+ goto oom;
+
+ return m;
+
+oom:
+ if (m)
+ dbus_message_unref(m);
+
+ return NULL;
+}
~ianmdlvl / elogind.git / blobdiff