diff options
Diffstat (limited to 'src/core/dbus-job.c')
-rw-r--r-- | src/core/dbus-job.c | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/src/core/dbus-job.c b/src/core/dbus-job.c deleted file mode 100644 index fdc1dce177..0000000000 --- a/src/core/dbus-job.c +++ /dev/null @@ -1,378 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - 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 "selinux-access.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; - - p = unit_dbus_path(j->unit); - if (!p) - return -ENOMEM; - - 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; - } - - free(p); - - if (!dbus_message_iter_close_container(i, &sub)) - 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; -} - -static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBusMessage *message, void *data) { - Manager *m = data; - Job *j; - int r; - _cleanup_dbus_message_unref_ DBusMessage *reply = NULL; - - assert(connection); - 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; - - fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE - "<node>\n", f); - - fputs(BUS_INTROSPECTABLE_INTERFACE, f); - fputs(BUS_PEER_INTERFACE, f); - - HASHMAP_FOREACH(j, m->jobs, i) - fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id); - - fputs("</node>\n", f); - - if (ferror(f)) { - fclose(f); - free(introspection); - goto oom; - } - - fclose(f); - - if (!introspection) - goto oom; - - if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) { - free(introspection); - goto oom; - } - - free(introspection); - - if (!dbus_connection_send(connection, reply, NULL)) - goto oom; - - return DBUS_HANDLER_RESULT_HANDLED; - } - - return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; - } - - 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 (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; -} - -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; - int r; - - 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 m; - -oom: - if (m) - dbus_message_unref(m); - free(p); - return NULL; -} - -static DBusMessage* new_removed_signal_message(Job *j) { - DBusMessage *m = NULL; - char *p = NULL; - const char *r; - - 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; - -oom: - if (m) - dbus_message_unref(m); - free(p); - return NULL; -} - -void bus_job_send_change_signal(Job *j) { - assert(j); - - if (j->in_dbus_queue) { - LIST_REMOVE(Job, 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; - - j->sent_dbus_new_signal = true; - - return; - -oom: - log_error("Failed to allocate job change signal."); -} - -void bus_job_send_removed_signal(Job *j) { - assert(j); - - if (!bus_has_subscriber(j->manager) && !j->bus_client_list && !j->forgot_bus_clients) - return; - - 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."); -} |