+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8 -*-*/
-
-/***
- 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 General Public License as published by
- the Free Software Foundation; either version 2 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
- General Public License for more details.
-
- You should have received a copy of the GNU 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-manager.h"
-#include "strv.h"
-
-#define INTROSPECTION_BEGIN \
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
- "<node>" \
- " <interface name=\"org.freedesktop.systemd1.Manager\">" \
- " <method name=\"GetUnit\">" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>" \
- " <arg name=\"unit\" type=\"o\" direction=\"out\"/>" \
- " </method>" \
- " <method name=\"LoadUnit\">" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>" \
- " <arg name=\"unit\" type=\"o\" direction=\"out\"/>" \
- " </method>" \
- " <method name=\"GetJob\">" \
- " <arg name=\"id\" type=\"u\" direction=\"in\"/>" \
- " <arg name=\"job\" type=\"o\" direction=\"out\"/>" \
- " </method>" \
- " <method name=\"ClearJobs\"/>" \
- " <method name=\"ListUnits\">" \
- " <arg name=\"units\" type=\"a(sssssouso)\" direction=\"out\"/>" \
- " </method>" \
- " <method name=\"ListJobs\">" \
- " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>" \
- " </method>" \
- " <method name=\"Subscribe\"/>" \
- " <method name=\"Unsubscribe\"/>" \
- " <method name=\"Dump\"/>" \
- " <method name=\"CreateSnapshot\">" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>" \
- " <arg nane=\"cleanup\" type=\"b\" direction=\"in\"/>" \
- " <arg name=\"unit\" type=\"o\" direction=\"out\"/>" \
- " </method>" \
- " <method name=\"Reload\"/>" \
- " <method name=\"Reexecute\"/>" \
- " <method name=\"Exit\"/>" \
- " <method name=\"SetEnvironment\">" \
- " <arg name=\"names\" type=\"as\" direction=\"in\"/>" \
- " </method>" \
- " <method name=\"UnsetEnvironment\">" \
- " <arg name=\"names\" type=\"as\" direction=\"in\"/>" \
- " </method>" \
- " <signal name=\"UnitNew\">" \
- " <arg name=\"id\" type=\"s\"/>" \
- " <arg name=\"unit\" type=\"o\"/>" \
- " </signal>" \
- " <signal name=\"UnitRemoved\">" \
- " <arg name=\"id\" type=\"s\"/>" \
- " <arg name=\"unit\" type=\"o\"/>" \
- " </signal>" \
- " <signal name=\"JobNew\">" \
- " <arg name=\"id\" type=\"u\"/>" \
- " <arg name=\"job\" type=\"o\"/>" \
- " </signal>" \
- " <signal name=\"JobRemoved\">" \
- " <arg name=\"id\" type=\"u\"/>" \
- " <arg name=\"job\" type=\"o\"/>" \
- " </signal>" \
- " <property name=\"Version\" type=\"s\" access=\"read\"/>" \
- " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>" \
- " <property name=\"BootTimestamp\" type=\"t\" access=\"read\"/>" \
- " <property name=\"LogLevel\" type=\"s\" access=\"read\"/>" \
- " <property name=\"LogTarget\" type=\"s\" access=\"read\"/>" \
- " <property name=\"NNames\" type=\"u\" access=\"read\"/>" \
- " <property name=\"NJobs\" type=\"u\" access=\"read\"/>" \
- " <property name=\"Environment\" type=\"as\" access=\"read\"/>" \
- " </interface>" \
- BUS_PROPERTIES_INTERFACE \
- BUS_INTROSPECTABLE_INTERFACE
-
-#define INTROSPECTION_END \
- "</node>"
-
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
-
-static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
- const char *t;
-
- assert(m);
- assert(i);
- assert(property);
-
- t = log_target_to_string(log_get_target());
-
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
- const char *t;
-
- assert(m);
- assert(i);
- assert(property);
-
- t = log_level_to_string(log_get_max_level());
-
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
- uint32_t u;
-
- assert(m);
- assert(i);
- assert(property);
-
- u = hashmap_size(m->units);
-
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
- uint32_t u;
-
- assert(m);
- assert(i);
- assert(property);
-
- u = hashmap_size(m->jobs);
-
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
- return -ENOMEM;
-
- return 0;
-}
-
-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->boot_timestamp },
- { "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 },
- { NULL, NULL, NULL, NULL, NULL }
- };
-
- int r;
- DBusError error;
- DBusMessage *reply = NULL;
- char * path = NULL;
-
- assert(connection);
- assert(message);
- assert(m);
-
- 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;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
-
- if (!(u = manager_get_unit(m, name)))
- return bus_send_error_reply(m, message, NULL, -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;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
-
- if ((r = manager_load_unit(m, name, NULL, &u)) < 0)
- return bus_send_error_reply(m, message, NULL, r);
-
- 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", "GetJob")) {
- uint32_t id;
- Job *j;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_UINT32, &id,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, message, &error, -EINVAL);
-
- if (!(j = manager_get_job(m, id)))
- return bus_send_error_reply(m, message, NULL, -ENOENT);
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- if (!(path = job_dbus_path(j)))
- 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", "ClearJobs")) {
-
- manager_clear_jobs(m);
-
- 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;
- Unit *u;
- const char *k;
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- dbus_message_iter_init_append(reply, &iter);
-
- if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sssssouso)", &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, *job_type;
- DBusMessageIter sub2;
- uint32_t job_id;
-
- if (k != u->meta.id)
- continue;
-
- if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
- goto oom;
-
- description = unit_description(u);
- load_state = unit_load_state_to_string(u->meta.load_state);
- active_state = unit_active_state_to_string(unit_active_state(u));
- sub_state = unit_sub_state_to_string(u);
-
- if (!(u_path = unit_dbus_path(u)))
- goto oom;
-
- if (u->meta.job) {
- job_id = (uint32_t) u->meta.job->id;
-
- if (!(j_path = job_dbus_path(u->meta.job))) {
- free(u_path);
- goto oom;
- }
-
- job_type = job_type_to_string(u->meta.job->type);
- } else {
- job_id = 0;
- j_path = u_path;
- job_type = "";
- }
-
- if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
- !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_OBJECT_PATH, &u_path) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &job_type) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
- free(u_path);
- if (u->meta.job)
- free(j_path);
- goto oom;
- }
-
- free(u_path);
- if (u->meta.job)
- free(j_path);
-
- if (!dbus_message_iter_close_container(&sub, &sub2))
- goto oom;
- }
-
- if (!dbus_message_iter_close_container(&iter, &sub))
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
- DBusMessageIter iter, sub;
- Iterator i;
- Job *j;
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- dbus_message_iter_init_append(reply, &iter);
-
- if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
- goto oom;
-
- HASHMAP_FOREACH(j, m->jobs, i) {
- char *u_path, *j_path;
- const char *state, *type;
- uint32_t id;
- DBusMessageIter sub2;
-
- if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
- goto oom;
-
- id = (uint32_t) j->id;
- state = job_state_to_string(j->state);
- type = job_type_to_string(j->type);
-
- if (!(j_path = job_dbus_path(j)))
- goto oom;
-
- if (!(u_path = unit_dbus_path(j->unit))) {
- free(j_path);
- goto oom;
- }
-
- if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
- free(j_path);
- free(u_path);
- goto oom;
- }
-
- free(j_path);
- free(u_path);
-
- if (!dbus_message_iter_close_container(&sub, &sub2))
- goto oom;
- }
-
- if (!dbus_message_iter_close_container(&iter, &sub))
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
- char *client;
-
- if (!(client = strdup(dbus_message_get_sender(message))))
- goto oom;
-
- r = set_put(m->subscribed, client);
-
- if (r < 0)
- return bus_send_error_reply(m, message, NULL, r);
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- } 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);
-
- free(client);
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
- FILE *f;
- char *dump = NULL;
- size_t size;
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- if (!(f = open_memstream(&dump, &size)))
- goto oom;
-
- manager_dump_units(m, f, NULL);
- manager_dump_jobs(m, f, NULL);
-
- if (ferror(f)) {
- fclose(f);
- free(dump);
- goto oom;
- }
-
- fclose(f);
-
- if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
- free(dump);
- goto oom;
- }
-
- free(dump);
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
- const char *name;
- dbus_bool_t cleanup;
- Snapshot *s;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_BOOLEAN, &cleanup,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(m, 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 (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- if (!(path = unit_dbus_path(UNIT(s))))
- 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.DBus.Introspectable", "Introspect")) {
- char *introspection = NULL;
- FILE *f;
- Iterator i;
- Unit *u;
- Job *j;
- const char *k;
- size_t size;
-
- if (!(reply = dbus_message_new_method_return(message)))
- 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. */
-
- if (!(f = open_memstream(&introspection, &size)))
- goto oom;
-
- fputs(INTROSPECTION_BEGIN, f);
-
- HASHMAP_FOREACH_KEY(u, k, m->units, i) {
- char *p;
-
- if (k != u->meta.id)
- continue;
-
- if (!(p = bus_path_escape(k))) {
- fclose(f);
- free(introspection);
- goto oom;
- }
-
- fprintf(f, "<node name=\"unit/%s\"/>", p);
- free(p);
- }
-
- HASHMAP_FOREACH(j, m->jobs, i)
- fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
-
- fputs(INTROSPECTION_END, 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);
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
-
- assert(!m->queued_message);
-
- /* Instead of sending the reply back right away, we
- * just remember that we need to and then send it
- * after the reload is finished. That way the caller
- * knows when the reload finished. */
-
- if (!(m->queued_message = dbus_message_new_method_return(message)))
- goto oom;
-
- m->exit_code = MANAGER_RELOAD;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- m->exit_code = MANAGER_REEXECUTE;
-
- } 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 (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- m->exit_code = MANAGER_EXIT;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
- char **l = NULL, **e = NULL;
-
- if ((r = bus_parse_strv(message, &l)) < 0) {
- if (r == -ENOMEM)
- goto oom;
-
- return bus_send_error_reply(m, message, NULL, r);
- }
-
- e = strv_env_merge(m->environment, l, NULL);
- strv_free(l);
-
- if (!e)
- goto oom;
-
- if (!(reply = dbus_message_new_method_return(message))) {
- strv_free(e);
- goto oom;
- }
-
- strv_free(m->environment);
- m->environment = e;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
- char **l = NULL, **e = NULL;
-
- if ((r = bus_parse_strv(message, &l)) < 0) {
- if (r == -ENOMEM)
- goto oom;
-
- return bus_send_error_reply(m, message, NULL, r);
- }
-
- e = strv_env_delete(m->environment, l, NULL);
- strv_free(l);
-
- if (!e)
- goto oom;
-
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- strv_free(m->environment);
- m->environment = e;
-
- } else
- return bus_default_message_handler(m, message, NULL, properties);
-
- free(path);
-
- if (reply) {
- if (!dbus_connection_send(connection, reply, NULL))
- goto oom;
-
- dbus_message_unref(reply);
- }
-
- return DBUS_HANDLER_RESULT_HANDLED;
-
-oom:
- free(path);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-}
-
-const DBusObjectPathVTable bus_manager_vtable = {
- .message_function = bus_manager_message_handler
-};
~ianmdlvl / elogind.git / blobdiff