chiark / gitweb /
vala: hide a few vala warnings
[elogind.git] / dbus-manager.c
index 32d074502509a58f30cadcf4b077da75422067b3..90ab8d1a0cab509b1d78270191962a65bf0a8842 100644 (file)
@@ -1,14 +1,35 @@
 /*-*- 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\">"                \
+        " <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=\"GetJob\">"                                    \
         "   <arg name=\"id\" type=\"u\" direction=\"in\"/>"             \
-        "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>"          \
+        "   <arg name=\"job\" type=\"o\" direction=\"out\"/>"           \
         "  </method>"                                                   \
         "  <method name=\"ClearJobs\"/>"                                \
         "  <method name=\"ListUnits\">"                                 \
-        "   <arg name=\"units\" type=\"a(ssssouso)\" direction=\"out\"/>" \
+        "   <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>"
 
-DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusMessage *message, void *data) {
-        int r;
+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;
@@ -53,7 +190,7 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                   dbus_message_get_member(message),
                   dbus_message_get_path(message));
 
-        if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "GetUnit")) {
+        if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
                 const char *name;
                 Unit *u;
 
@@ -79,7 +216,7 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                                     DBUS_TYPE_INVALID))
                         goto oom;
 
-        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "LoadUnit")) {
+        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
                 const char *name;
                 Unit *u;
 
@@ -90,7 +227,7 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                                     DBUS_TYPE_INVALID))
                         return bus_send_error_reply(m, message, &error, -EINVAL);
 
-                if ((r = manager_load_unit(m, name, &u)) < 0)
+                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)))
@@ -105,7 +242,7 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                                     DBUS_TYPE_INVALID))
                         goto oom;
 
-        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1",  "GetJob")) {
+        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
                 uint32_t id;
                 Job *j;
 
@@ -131,14 +268,14 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                                     DBUS_TYPE_INVALID))
                         goto oom;
 
-        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1",  "ClearJobs")) {
+        } 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",  "ListUnits")) {
+        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
                 DBusMessageIter iter, sub;
                 Iterator i;
                 Unit *u;
@@ -149,17 +286,16 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
 
                 dbus_message_iter_init_append(reply, &iter);
 
-                if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssouso)", &sub))
+                if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sssssouso)", &sub))
                         goto oom;
 
                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
-                        char *unit_path, *job_path;
-                        const char *id, *description, *load_state, *active_state, *job_type;
+                        char *u_path, *j_path;
+                        const char *description, *load_state, *active_state, *sub_state, *job_type;
                         DBusMessageIter sub2;
                         uint32_t job_id;
 
-                        id = unit_id(u);
-                        if (k != id)
+                        if (k != u->meta.id)
                                 continue;
 
                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
@@ -168,42 +304,44 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                         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 (!(unit_path = unit_dbus_path(u)))
+                        if (!(u_path = unit_dbus_path(u)))
                                 goto oom;
 
                         if (u->meta.job) {
                                 job_id = (uint32_t) u->meta.job->id;
 
-                                if (!(job_path = job_dbus_path(u->meta.job))) {
-                                        free(unit_path);
+                                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;
-                                job_path = unit_path;
+                                j_path = u_path;
                                 job_type = "";
                         }
 
-                        if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &id) ||
+                        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_OBJECT_PATH, &unit_path) ||
+                            !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, &job_path)) {
-                                free(unit_path);
+                            !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
+                                free(u_path);
                                 if (u->meta.job)
-                                        free(job_path);
+                                        free(j_path);
                                 goto oom;
                         }
 
-                        free(unit_path);
+                        free(u_path);
                         if (u->meta.job)
-                                free(job_path);
+                                free(j_path);
 
                         if (!dbus_message_iter_close_container(&sub, &sub2))
                                 goto oom;
@@ -212,7 +350,7 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                 if (!dbus_message_iter_close_container(&iter, &sub))
                         goto oom;
 
-        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1",  "ListJobs")) {
+        } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
                 DBusMessageIter iter, sub;
                 Iterator i;
                 Job *j;
@@ -226,8 +364,8 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                         goto oom;
 
                 HASHMAP_FOREACH(j, m->jobs, i) {
-                        char *unit_path, *job_path;
-                        const char *unit, *state, *type;
+                        char *u_path, *j_path;
+                        const char *state, *type;
                         uint32_t id;
                         DBusMessageIter sub2;
 
@@ -235,31 +373,30 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                                 goto oom;
 
                         id = (uint32_t) j->id;
-                        unit = unit_id(j->unit);
                         state = job_state_to_string(j->state);
                         type = job_type_to_string(j->type);
 
-                        if (!(job_path = job_dbus_path(j)))
+                        if (!(j_path = job_dbus_path(j)))
                                 goto oom;
 
-                        if (!(unit_path = unit_dbus_path(j->unit))) {
-                                free(job_path);
+                        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, &unit) ||
+                            !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, &job_path) ||
-                            !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path)) {
-                                free(job_path);
-                                free(unit_path);
+                            !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(job_path);
-                        free(unit_path);
+                        free(j_path);
+                        free(u_path);
 
                         if (!dbus_message_iter_close_container(&sub, &sub2))
                                 goto oom;
@@ -268,6 +405,90 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                 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;
@@ -293,7 +514,7 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
                         char *p;
 
-                        if (k != unit_id(u))
+                        if (k != u->meta.id)
                                 continue;
 
                         if (!(p = bus_path_escape(k))) {
@@ -329,8 +550,85 @@ DBusHandlerResult bus_manager_message_handler(DBusConnection  *connection, DBusM
 
                 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, NULL);
+                return bus_default_message_handler(m, message, NULL, properties);
 
         free(path);