2017-11-18 17:09:20 +01:00
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/* SPDX-License-Identifier: LGPL-2.1+ */
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2013-03-30 15:30:23 +01:00
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <pthread.h>
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2015-10-24 22:58:24 +02:00
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#include <stdlib.h>
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2013-03-30 15:30:23 +01:00
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#include "sd-bus.h"
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2015-10-24 22:58:24 +02:00
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2013-03-30 15:30:23 +01:00
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#include "bus-internal.h"
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2015-08-27 16:32:22 +02:00
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#include "bus-util.h"
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2015-10-24 22:58:24 +02:00
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#include "log.h"
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#include "macro.h"
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#include "util.h"
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2013-03-30 15:30:23 +01:00
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struct context {
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int fds[2];
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bool client_negotiate_unix_fds;
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bool server_negotiate_unix_fds;
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bool client_anonymous_auth;
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bool server_anonymous_auth;
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};
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static void *server(void *p) {
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struct context *c = p;
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sd_bus *bus = NULL;
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sd_id128_t id;
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bool quit = false;
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int r;
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assert_se(sd_id128_randomize(&id) >= 0);
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assert_se(sd_bus_new(&bus) >= 0);
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2013-03-31 19:10:49 +02:00
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assert_se(sd_bus_set_fd(bus, c->fds[0], c->fds[0]) >= 0);
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2013-03-30 15:30:23 +01:00
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assert_se(sd_bus_set_server(bus, 1, id) >= 0);
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assert_se(sd_bus_set_anonymous(bus, c->server_anonymous_auth) >= 0);
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2013-05-17 04:25:56 +02:00
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assert_se(sd_bus_negotiate_fds(bus, c->server_negotiate_unix_fds) >= 0);
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2013-03-30 15:30:23 +01:00
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assert_se(sd_bus_start(bus) >= 0);
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while (!quit) {
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tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
2015-11-27 19:13:45 +01:00
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
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2013-03-30 15:30:23 +01:00
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r = sd_bus_process(bus, &m);
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if (r < 0) {
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2014-11-28 13:19:16 +01:00
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log_error_errno(r, "Failed to process requests: %m");
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2013-03-30 15:30:23 +01:00
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goto fail;
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}
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if (r == 0) {
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r = sd_bus_wait(bus, (uint64_t) -1);
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if (r < 0) {
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2014-11-28 13:19:16 +01:00
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log_error_errno(r, "Failed to wait: %m");
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2013-03-30 15:30:23 +01:00
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goto fail;
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}
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continue;
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}
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if (!m)
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continue;
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log_info("Got message! member=%s", strna(sd_bus_message_get_member(m)));
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if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Exit")) {
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assert_se((sd_bus_can_send(bus, 'h') >= 1) == (c->server_negotiate_unix_fds && c->client_negotiate_unix_fds));
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2013-11-21 01:51:16 +01:00
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r = sd_bus_message_new_method_return(m, &reply);
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2013-03-30 15:30:23 +01:00
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if (r < 0) {
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2014-11-28 13:19:16 +01:00
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log_error_errno(r, "Failed to allocate return: %m");
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2013-03-30 15:30:23 +01:00
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goto fail;
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}
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quit = true;
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} else if (sd_bus_message_is_method_call(m, NULL, NULL)) {
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2013-04-05 13:11:26 +02:00
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r = sd_bus_message_new_method_error(
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2013-11-21 01:51:16 +01:00
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m,
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2014-02-19 23:54:58 +01:00
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&reply,
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&SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method."));
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2013-03-30 15:30:23 +01:00
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if (r < 0) {
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2014-11-28 13:19:16 +01:00
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log_error_errno(r, "Failed to allocate return: %m");
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2013-03-30 15:30:23 +01:00
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goto fail;
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}
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}
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if (reply) {
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r = sd_bus_send(bus, reply, NULL);
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if (r < 0) {
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2014-11-28 13:19:16 +01:00
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log_error_errno(r, "Failed to send reply: %m");
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2013-03-30 15:30:23 +01:00
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goto fail;
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}
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}
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}
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r = 0;
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fail:
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if (bus) {
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sd_bus_flush(bus);
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sd_bus_unref(bus);
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}
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return INT_TO_PTR(r);
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}
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static int client(struct context *c) {
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tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
2015-11-27 19:13:45 +01:00
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
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_cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
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2013-04-05 13:11:26 +02:00
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sd_bus_error error = SD_BUS_ERROR_NULL;
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2013-03-30 15:30:23 +01:00
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int r;
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assert_se(sd_bus_new(&bus) >= 0);
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2013-03-31 19:10:49 +02:00
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assert_se(sd_bus_set_fd(bus, c->fds[1], c->fds[1]) >= 0);
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2013-05-17 04:25:56 +02:00
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assert_se(sd_bus_negotiate_fds(bus, c->client_negotiate_unix_fds) >= 0);
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2013-03-30 15:30:23 +01:00
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assert_se(sd_bus_set_anonymous(bus, c->client_anonymous_auth) >= 0);
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assert_se(sd_bus_start(bus) >= 0);
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r = sd_bus_message_new_method_call(
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bus,
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2014-02-19 23:54:58 +01:00
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&m,
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2013-03-30 15:30:23 +01:00
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"org.freedesktop.systemd.test",
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"/",
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"org.freedesktop.systemd.test",
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2014-02-19 23:54:58 +01:00
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"Exit");
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2014-11-28 18:50:43 +01:00
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if (r < 0)
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return log_error_errno(r, "Failed to allocate method call: %m");
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2013-03-30 15:30:23 +01:00
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2013-11-11 18:55:34 +01:00
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r = sd_bus_call(bus, m, 0, &error, &reply);
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2013-03-30 15:30:23 +01:00
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if (r < 0) {
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log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
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return r;
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}
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return 0;
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}
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static int test_one(bool client_negotiate_unix_fds, bool server_negotiate_unix_fds,
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bool client_anonymous_auth, bool server_anonymous_auth) {
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struct context c;
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pthread_t s;
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void *p;
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int r, q;
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zero(c);
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assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, c.fds) >= 0);
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c.client_negotiate_unix_fds = client_negotiate_unix_fds;
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c.server_negotiate_unix_fds = server_negotiate_unix_fds;
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c.client_anonymous_auth = client_anonymous_auth;
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c.server_anonymous_auth = server_anonymous_auth;
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r = pthread_create(&s, NULL, server, &c);
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if (r != 0)
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return -r;
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r = client(&c);
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q = pthread_join(s, &p);
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if (q != 0)
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return -q;
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if (r < 0)
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return r;
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if (PTR_TO_INT(p) < 0)
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return PTR_TO_INT(p);
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return 0;
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}
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int main(int argc, char *argv[]) {
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int r;
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r = test_one(true, true, false, false);
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assert_se(r >= 0);
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r = test_one(true, false, false, false);
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assert_se(r >= 0);
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r = test_one(false, true, false, false);
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assert_se(r >= 0);
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r = test_one(false, false, false, false);
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assert_se(r >= 0);
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r = test_one(true, true, true, true);
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assert_se(r >= 0);
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r = test_one(true, true, false, true);
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assert_se(r >= 0);
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r = test_one(true, true, true, false);
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assert_se(r == -EPERM);
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return EXIT_SUCCESS;
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}
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