along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <errno.h>
-
-#include "dbus.h"
#include "log.h"
-#include "dbus-job.h"
-#include "dbus-common.h"
+#include "sd-bus.h"
#include "selinux-access.h"
+#include "job.h"
+#include "dbus-job.h"
+#include "dbus-client-track.h"
-#define BUS_JOB_INTERFACE \
- " <interface name=\"org.freedesktop.systemd1.Job\">\n" \
- " <method name=\"Cancel\"/>\n" \
- " <property name=\"Id\" type=\"u\" access=\"read\"/>\n" \
- " <property name=\"Unit\" type=\"(so)\" access=\"read\"/>\n" \
- " <property name=\"JobType\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"State\" type=\"s\" access=\"read\"/>\n" \
- " </interface>\n"
-
-#define INTROSPECTION \
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
- "<node>\n" \
- BUS_JOB_INTERFACE \
- BUS_PROPERTIES_INTERFACE \
- BUS_PEER_INTERFACE \
- BUS_INTROSPECTABLE_INTERFACE \
- "</node>\n"
-
-const char bus_job_interface[] _introspect_("Job") = BUS_JOB_INTERFACE;
-
-#define INTERFACES_LIST \
- BUS_GENERIC_INTERFACES_LIST \
- "org.freedesktop.systemd1.Job\0"
-
-#define INVALIDATING_PROPERTIES \
- "State\0"
-
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_state, job_state, JobState);
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_type, job_type, JobType);
-
-static int bus_job_append_unit(DBusMessageIter *i, const char *property, void *data) {
- Job *j = data;
- DBusMessageIter sub;
- char *p;
-
- assert(i);
- assert(property);
- assert(j);
-
- if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
- return -ENOMEM;
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, job_type, JobType);
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_state, job_state, JobState);
- p = unit_dbus_path(j->unit);
- if (!p)
- return -ENOMEM;
+static int property_get_unit(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &j->unit->id) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
- free(p);
- return -ENOMEM;
- }
+ _cleanup_free_ char *p = NULL;
+ Job *j = userdata;
- free(p);
+ assert(bus);
+ assert(reply);
+ assert(j);
- if (!dbus_message_iter_close_container(i, &sub))
+ p = unit_dbus_path(j->unit);
+ if (!p)
return -ENOMEM;
- return 0;
-}
-
-static const BusProperty bus_job_properties[] = {
- { "Id", bus_property_append_uint32, "u", offsetof(Job, id) },
- { "State", bus_job_append_state, "s", offsetof(Job, state) },
- { "JobType", bus_job_append_type, "s", offsetof(Job, type) },
- { "Unit", bus_job_append_unit, "(so)", 0 },
- { NULL, }
-};
-
-static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusConnection *connection, DBusMessage *message) {
- _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
-
- if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Job", "Cancel")) {
-
- SELINUX_UNIT_ACCESS_CHECK(j->unit, connection, message, "stop");
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-
- job_finish_and_invalidate(j, JOB_CANCELED, true);
- } else {
- const BusBoundProperties bps[] = {
- { "org.freedesktop.systemd1.Job", bus_job_properties, j },
- { NULL, }
- };
-
- SELINUX_UNIT_ACCESS_CHECK(j->unit, connection, message, "status");
-
- return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
- }
-
- if (!dbus_connection_send(connection, reply, NULL))
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-
- return DBUS_HANDLER_RESULT_HANDLED;
+ return sd_bus_message_append(reply, "(so)", j->unit->id, p);
}
-static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
- Manager *m = data;
- Job *j;
+static int method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Job *j = userdata;
int r;
- _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
- assert(connection);
+ assert(bus);
assert(message);
- assert(m);
-
- if (streq(dbus_message_get_path(message), "/org/freedesktop/systemd1/job")) {
- /* Be nice to gdbus and return introspection data for our mid-level paths */
-
- if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
- char *introspection = NULL;
- FILE *f;
- Iterator i;
- size_t size;
-
- SELINUX_ACCESS_CHECK(connection, message, "status");
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
-
- /* We roll our own introspection code here, instead of
- * relying on bus_default_message_handler() because we
- * need to generate our introspection string
- * dynamically. */
-
- f = open_memstream(&introspection, &size);
- if (!f)
- goto oom;
+ assert(j);
- fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
- "<node>\n", f);
+ r = selinux_unit_access_check(j->unit, bus, message, "stop", error);
+ if (r < 0)
+ return r;
- fputs(BUS_INTROSPECTABLE_INTERFACE, f);
- fputs(BUS_PEER_INTERFACE, f);
+ job_finish_and_invalidate(j, JOB_CANCELED, true);
- HASHMAP_FOREACH(j, m->jobs, i)
- fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
+ return sd_bus_reply_method_return(message, NULL);
+}
- fputs("</node>\n", f);
+const sd_bus_vtable bus_job_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+ SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, 0),
+ SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Job, id), 0),
+ SD_BUS_PROPERTY("Unit", "(so)", property_get_unit, 0, 0),
+ SD_BUS_PROPERTY("JobType", "s", property_get_type, offsetof(Job, type), 0),
+ SD_BUS_PROPERTY("State", "s", property_get_state, offsetof(Job, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_VTABLE_END
+};
- if (ferror(f)) {
- fclose(f);
- free(introspection);
- goto oom;
- }
+static int foreach_client(Job *j, int (*send_message)(sd_bus *bus, const char *name, Job *j)) {
+ BusTrackedClient *one_destination = NULL;
+ Iterator i;
+ sd_bus *b;
+ unsigned n, m;
+ int r, ret;
- fclose(f);
+ assert(j);
+ assert(send_message);
- if (!introspection)
- goto oom;
+ n = set_size(j->manager->subscribed);
+ m = set_size(j->subscribed);
- if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
- free(introspection);
- goto oom;
- }
+ if (n <= 0 && m <= 0)
+ return 0;
- free(introspection);
+ if (n == 1 && m == 0)
+ one_destination = set_first(j->manager->subscribed);
+ else if (n == 0 && m == 1)
+ one_destination = set_first(j->subscribed);
+ else
+ one_destination = NULL;
- if (!dbus_connection_send(connection, reply, NULL))
- goto oom;
+ if (one_destination)
+ return send_message(one_destination->bus, isempty(one_destination->name) ? NULL : one_destination->name, j);
- return DBUS_HANDLER_RESULT_HANDLED;
- }
+ ret = 0;
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ /* Send to everybody */
+ SET_FOREACH(b, j->manager->private_buses, i) {
+ r = send_message(b, NULL, j);
+ if (r < 0)
+ ret = r;
}
- r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j);
- if (r == -ENOMEM)
- goto oom;
- if (r == -ENOENT) {
- DBusError e;
-
- dbus_error_init(&e);
- dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown job");
- return bus_send_error_reply(connection, message, &e, r);
+ if (j->manager->api_bus) {
+ r = send_message(j->manager->api_bus, NULL, j);
+ if (r < 0)
+ ret = r;
}
- if (r < 0)
- return bus_send_error_reply(connection, message, NULL, r);
-
- return bus_job_message_dispatch(j, connection, message);
-oom:
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
+ return ret;
}
-const DBusObjectPathVTable bus_job_vtable = {
- .message_function = bus_job_message_handler
-};
-
-static int job_send_message(Job *j, DBusMessage* (*new_message)(Job *j)) {
- DBusMessage *m = NULL;
+static int send_new_signal(sd_bus *bus, const char *destination, Job *j) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_free_ char *p = NULL;
int r;
+ assert(bus);
assert(j);
- assert(new_message);
-
- if (bus_has_subscriber(j->manager) || j->forgot_bus_clients) {
- m = new_message(j);
- if (!m)
- goto oom;
- r = bus_broadcast(j->manager, m);
- dbus_message_unref(m);
- if (r < 0)
- return r;
-
- } else {
- /* If nobody is subscribed, we just send the message
- * to the client(s) which created the job */
- JobBusClient *cl;
- assert(j->bus_client_list);
- LIST_FOREACH(client, cl, j->bus_client_list) {
- assert(cl->bus);
-
- m = new_message(j);
- if (!m)
- goto oom;
-
- if (!dbus_message_set_destination(m, cl->name))
- goto oom;
-
- if (!dbus_connection_send(cl->bus, m, NULL))
- goto oom;
-
- dbus_message_unref(m);
- m = NULL;
- }
- }
-
- return 0;
-oom:
- if (m)
- dbus_message_unref(m);
- return -ENOMEM;
-}
-
-static DBusMessage* new_change_signal_message(Job *j) {
- DBusMessage *m = NULL;
- char *p = NULL;
p = job_dbus_path(j);
if (!p)
- goto oom;
-
- if (j->sent_dbus_new_signal) {
- /* Send a properties changed signal */
- m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Job", INVALIDATING_PROPERTIES);
- if (!m)
- goto oom;
-
- } else {
- /* Send a new signal */
-
- m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobNew");
- if (!m)
- goto oom;
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &j->id,
- DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_STRING, &j->unit->id,
- DBUS_TYPE_INVALID))
- goto oom;
- }
+ return -ENOMEM;
- return m;
+ r = sd_bus_message_new_signal(
+ bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "JobNew",
+ &m);
+ if (r < 0)
+ return r;
-oom:
- if (m)
- dbus_message_unref(m);
- free(p);
- return NULL;
+ r = sd_bus_message_append(m, "uos", j->id, p, j->unit->id);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send_to(bus, m, destination, NULL);
}
-static DBusMessage* new_removed_signal_message(Job *j) {
- DBusMessage *m = NULL;
- char *p = NULL;
- const char *r;
+static int send_changed_signal(sd_bus *bus, const char *destination, Job *j) {
+ _cleanup_free_ char *p = NULL;
+
+ assert(bus);
+ assert(j);
p = job_dbus_path(j);
if (!p)
- goto oom;
-
- m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobRemoved");
- if (!m)
- goto oom;
-
- r = job_result_to_string(j->result);
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &j->id,
- DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_STRING, &j->unit->id,
- DBUS_TYPE_STRING, &r,
- DBUS_TYPE_INVALID))
- goto oom;
-
- return m;
+ return -ENOMEM;
-oom:
- if (m)
- dbus_message_unref(m);
- free(p);
- return NULL;
+ return sd_bus_emit_properties_changed(bus, p, "org.freedesktop.systemd1.Job", "State", NULL);
}
void bus_job_send_change_signal(Job *j) {
+ int r;
+
assert(j);
if (j->in_dbus_queue) {
- LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
+ LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j);
j->in_dbus_queue = false;
}
- if (!bus_has_subscriber(j->manager) && !j->bus_client_list && !j->forgot_bus_clients) {
- j->sent_dbus_new_signal = true;
- return;
- }
-
- if (job_send_message(j, new_change_signal_message) < 0)
- goto oom;
+ r = foreach_client(j, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal);
+ if (r < 0)
+ log_debug("Failed to send job change signal for %u: %s", j->id, strerror(-r));
j->sent_dbus_new_signal = true;
+}
+
+static int send_removed_signal(sd_bus *bus, const char *destination, Job *j) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_free_ char *p = NULL;
+ int r;
+
+ assert(bus);
+ assert(j);
+
+ p = job_dbus_path(j);
+ if (!p)
+ return -ENOMEM;
+
+
+ r = sd_bus_message_new_signal(
+ bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "JobRemoved",
+ &m);
+ if (r < 0)
+ return r;
- return;
+ r = sd_bus_message_append(m, "uoss", j->id, p, j->unit->id, job_result_to_string(j->result));
+ if (r < 0)
+ return r;
-oom:
- log_error("Failed to allocate job change signal.");
+ return sd_bus_send_to(bus, m, destination, NULL);
}
void bus_job_send_removed_signal(Job *j) {
- assert(j);
+ int r;
- if (!bus_has_subscriber(j->manager) && !j->bus_client_list && !j->forgot_bus_clients)
- return;
+ assert(j);
if (!j->sent_dbus_new_signal)
bus_job_send_change_signal(j);
- if (job_send_message(j, new_removed_signal_message) < 0)
- goto oom;
-
- return;
-
-oom:
- log_error("Failed to allocate job remove signal.");
+ r = foreach_client(j, send_removed_signal);
+ if (r < 0)
+ log_debug("Failed to send job remove signal for %u: %s", j->id, strerror(-r));
}
~ianmdlvl / elogind.git / blobdiff