/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2013 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 <assert.h> #include <stdlib.h> #include <pthread.h> #include <unistd.h> #include <fcntl.h> #include "log.h" #include "util.h" #include "macro.h" #include "strv.h" #include "sd-bus.h" #include "bus-internal.h" #include "bus-message.h" #include "bus-util.h" struct context { int fds[2]; bool quit; char *something; char *automatic_string_property; uint32_t automatic_integer_property; }; static int something_handler(sd_bus *bus, sd_bus_message *m, void *userdata) { struct context *c = userdata; const char *s; char *n = NULL; int r; r = sd_bus_message_read(m, "s", &s); assert_se(r > 0); n = strjoin("<<<", s, ">>>", NULL); assert_se(n); free(c->something); c->something = n; log_info("AlterSomething() called, got %s, returning %s", s, n); r = sd_bus_reply_method_return(bus, m, "s", n); assert_se(r >= 0); return 1; } static int exit_handler(sd_bus *bus, sd_bus_message *m, void *userdata) { struct context *c = userdata; int r; c->quit = true; log_info("Exit called"); r = sd_bus_reply_method_return(bus, m, ""); assert_se(r >= 0); return 1; } static int get_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, sd_bus_error *error, void *userdata) { struct context *c = userdata; int r; log_info("property get for %s called", property); r = sd_bus_message_append(reply, "s", c->something); assert_se(r >= 0); return 1; } static int set_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, sd_bus_error *error, void *userdata) { struct context *c = userdata; const char *s; char *n; int r; log_info("property set for %s called", property); r = sd_bus_message_read(value, "s", &s); assert_se(r >= 0); n = strdup(s); assert_se(n); free(c->something); c->something = n; return 1; } static int value_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, sd_bus_error *error, void *userdata) { _cleanup_free_ char *s = NULL; const char *x; int r; assert_se(asprintf(&s, "object %p, path %s", userdata, path) >= 0); r = sd_bus_message_append(reply, "s", s); assert_se(r >= 0); assert_se(x = startswith(path, "/value/")); assert_se(PTR_TO_UINT(userdata) == 30); return 1; } static int notify_test(sd_bus *bus, sd_bus_message *m, void *userdata) { int r; assert_se(sd_bus_emit_properties_changed(bus, m->path, "org.freedesktop.systemd.ValueTest", "Value", NULL) >= 0); r = sd_bus_reply_method_return(bus, m, NULL); assert_se(r >= 0); return 1; } static int emit_interfaces_added(sd_bus *bus, sd_bus_message *m, void *userdata) { int r; assert_se(sd_bus_emit_interfaces_added(bus, m->path, "org.freedesktop.systemd.test", NULL) >= 0); r = sd_bus_reply_method_return(bus, m, NULL); assert_se(r >= 0); return 1; } static int emit_interfaces_removed(sd_bus *bus, sd_bus_message *m, void *userdata) { int r; assert_se(sd_bus_emit_interfaces_removed(bus, m->path, "org.freedesktop.systemd.test", NULL) >= 0); r = sd_bus_reply_method_return(bus, m, NULL); assert_se(r >= 0); return 1; } static const sd_bus_vtable vtable[] = { SD_BUS_VTABLE_START(0), SD_BUS_METHOD("AlterSomething", "s", "s", something_handler, 0), SD_BUS_METHOD("Exit", "", "", exit_handler, 0), SD_BUS_WRITABLE_PROPERTY("Something", "s", get_handler, set_handler, 0, 0), SD_BUS_WRITABLE_PROPERTY("AutomaticStringProperty", "s", NULL, NULL, offsetof(struct context, automatic_string_property), 0), SD_BUS_WRITABLE_PROPERTY("AutomaticIntegerProperty", "u", NULL, NULL, offsetof(struct context, automatic_integer_property), 0), SD_BUS_METHOD("NoOperation", NULL, NULL, NULL, 0), SD_BUS_METHOD("EmitInterfacesAdded", NULL, NULL, emit_interfaces_added, 0), SD_BUS_METHOD("EmitInterfacesRemoved", NULL, NULL, emit_interfaces_removed, 0), SD_BUS_VTABLE_END }; static const sd_bus_vtable vtable2[] = { SD_BUS_VTABLE_START(0), SD_BUS_METHOD("NotifyTest", "", "", notify_test, 0), SD_BUS_PROPERTY("Value", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_VTABLE_END }; static int enumerator_callback(sd_bus *b, const char *path, char ***nodes, void *userdata) { if (object_path_startswith("/value", path)) assert_se(*nodes = strv_new("/value/a", "/value/b", "/value/c", NULL)); return 1; } static void *server(void *p) { struct context *c = p; sd_bus *bus = NULL; sd_id128_t id; int r; c->quit = false; assert_se(sd_id128_randomize(&id) >= 0); assert_se(sd_bus_new(&bus) >= 0); assert_se(sd_bus_set_fd(bus, c->fds[0], c->fds[0]) >= 0); assert_se(sd_bus_set_server(bus, 1, id) >= 0); assert_se(sd_bus_add_object_vtable(bus, "/foo", "org.freedesktop.systemd.test", vtable, c) >= 0); assert_se(sd_bus_add_object_vtable(bus, "/foo", "org.freedesktop.systemd.test2", vtable, c) >= 0); assert_se(sd_bus_add_fallback_vtable(bus, "/value", "org.freedesktop.systemd.ValueTest", vtable2, NULL, UINT_TO_PTR(20)) >= 0); assert_se(sd_bus_add_node_enumerator(bus, "/value", enumerator_callback, NULL) >= 0); assert_se(sd_bus_add_object_manager(bus, "/value") >= 0); assert_se(sd_bus_start(bus) >= 0); log_error("Entering event loop on server"); while (!c->quit) { log_error("Loop!"); r = sd_bus_process(bus, NULL); if (r < 0) { log_error("Failed to process requests: %s", strerror(-r)); goto fail; } if (r == 0) { r = sd_bus_wait(bus, (uint64_t) -1); if (r < 0) { log_error("Failed to wait: %s", strerror(-r)); goto fail; } continue; } } r = 0; fail: if (bus) { sd_bus_flush(bus); sd_bus_unref(bus); } return INT_TO_PTR(r); } static int client(struct context *c) { _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; _cleanup_bus_unref_ sd_bus *bus = NULL; _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; const char *s; int r; assert_se(sd_bus_new(&bus) >= 0); assert_se(sd_bus_set_fd(bus, c->fds[1], c->fds[1]) >= 0); assert_se(sd_bus_start(bus) >= 0); r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "NoOperation", &error, NULL, NULL); assert_se(r >= 0); r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "s", "hallo"); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); assert_se(streq(s, "<<<hallo>>>")); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Doesntexist", &error, &reply, ""); assert_se(r < 0); assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)); sd_bus_error_free(&error); r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "as", 1, "hallo"); assert_se(r < 0); assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS)); sd_bus_error_free(&error); r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s"); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); assert_se(streq(s, "<<<hallo>>>")); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, "s", "test"); assert_se(r >= 0); r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s"); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); assert_se(streq(s, "test")); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AutomaticIntegerProperty", &error, "u", 815); assert_se(r >= 0); assert_se(c->automatic_integer_property == 815); r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AutomaticStringProperty", &error, "s", "Du Dödel, Du!"); assert_se(r >= 0); assert_se(streq(c->automatic_string_property, "Du Dödel, Du!")); r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, ""); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); fputs(s, stdout); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/value/xuzz", "org.freedesktop.systemd.ValueTest", "Value", &error, &reply, "s"); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); log_info("read %s", s); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, ""); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); fputs(s, stdout); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, ""); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); fputs(s, stdout); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, ""); assert_se(r >= 0); r = sd_bus_message_read(reply, "s", &s); assert_se(r >= 0); fputs(s, stdout); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", ""); assert_se(r >= 0); bus_message_dump(reply); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "org.freedesktop.systemd.ValueTest2"); assert_se(r < 0); assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_INTERFACE)); sd_bus_error_free(&error); r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.ObjectManager", "GetManagedObjects", &error, &reply, ""); assert_se(r < 0); assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)); sd_bus_error_free(&error); r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.ObjectManager", "GetManagedObjects", &error, &reply, ""); assert_se(r >= 0); bus_message_dump(reply); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.systemd.ValueTest", "NotifyTest", &error, NULL, ""); assert_se(r >= 0); r = sd_bus_process(bus, &reply); assert_se(r > 0); assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.Properties", "PropertiesChanged")); bus_message_dump(reply); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitInterfacesAdded", &error, NULL, ""); assert_se(r >= 0); r = sd_bus_process(bus, &reply); assert_se(r > 0); assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded")); bus_message_dump(reply); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitInterfacesRemoved", &error, NULL, ""); assert_se(r >= 0); r = sd_bus_process(bus, &reply); assert_se(r > 0); assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved")); bus_message_dump(reply); sd_bus_message_unref(reply); reply = NULL; r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Exit", &error, NULL, ""); assert_se(r >= 0); sd_bus_flush(bus); return 0; } int main(int argc, char *argv[]) { struct context c; pthread_t s; void *p; int r, q; zero(c); c.automatic_integer_property = 4711; assert_se(c.automatic_string_property = strdup("dudeldu")); assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, c.fds) >= 0); r = pthread_create(&s, NULL, server, &c); if (r != 0) return -r; r = client(&c); q = pthread_join(s, &p); if (q != 0) return -q; if (r < 0) return r; if (PTR_TO_INT(p) < 0) return PTR_TO_INT(p); free(c.something); free(c.automatic_string_property); return EXIT_SUCCESS; }