libsystemd-bus: rename to libsystemd

Documentation was updated to refer to either 'libsystemd' or 'sd-bus' in place
of libsystemd-bus.

1 files changed, 581 insertions, 0 deletions

diff --git a/src/libsystemd/test-bus-chat.c b/src/libsystemd/test-bus-chat.c
new file mode 100644
index 0000000000..021379f0b0
--- /dev/null
+++ b/src/libsystemd/test-bus-chat.c
@@ -0,0 +1,581 @@
+/*-*- 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 "sd-bus.h"
+#include "bus-message.h"
+#include "bus-error.h"
+#include "bus-match.h"
+#include "bus-internal.h"
+#include "bus-util.h"
+
+static int match_callback(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+        log_info("Match triggered! interface=%s member=%s", strna(sd_bus_message_get_interface(m)), strna(sd_bus_message_get_member(m)));
+        return 0;
+}
+
+static int object_callback(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+        int r;
+
+        assert(bus);
+
+        if (sd_bus_message_is_method_error(m, NULL))
+                return 0;
+
+        if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) {
+                log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m));
+
+                r = sd_bus_reply_method_return(m, NULL);
+                if (r < 0) {
+                        log_error("Failed to send reply: %s", strerror(-r));
+                        return r;
+                }
+
+                return 1;
+        }
+
+        return 0;
+}
+
+static int server_init(sd_bus **_bus) {
+        sd_bus *bus = NULL;
+        sd_id128_t id;
+        int r;
+        const char *unique;
+
+        assert(_bus);
+
+        r = sd_bus_open_user(&bus);
+        if (r < 0) {
+                log_error("Failed to connect to user bus: %s", strerror(-r));
+                goto fail;
+        }
+
+        r = sd_bus_get_server_id(bus, &id);
+        if (r < 0) {
+                log_error("Failed to get server ID: %s", strerror(-r));
+                goto fail;
+        }
+
+        r = sd_bus_get_unique_name(bus, &unique);
+        if (r < 0) {
+                log_error("Failed to get unique name: %s", strerror(-r));
+                goto fail;
+        }
+
+        log_info("Peer ID is " SD_ID128_FORMAT_STR ".", SD_ID128_FORMAT_VAL(id));
+        log_info("Unique ID: %s", unique);
+        log_info("Can send file handles: %i", sd_bus_can_send(bus, 'h'));
+
+        r = sd_bus_request_name(bus, "org.freedesktop.systemd.test", 0);
+        if (r < 0) {
+                log_error("Failed to acquire name: %s", strerror(-r));
+                goto fail;
+        }
+
+        r = sd_bus_add_fallback(bus, "/foo/bar", object_callback, NULL);
+        if (r < 0) {
+                log_error("Failed to add object: %s", strerror(-r));
+                goto fail;
+        }
+
+        r = sd_bus_add_match(bus, "type='signal',interface='foo.bar',member='Notify'", match_callback, NULL);
+        if (r < 0) {
+                log_error("Failed to add match: %s", strerror(-r));
+                goto fail;
+        }
+
+        r = sd_bus_add_match(bus, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL);
+        if (r < 0) {
+                log_error("Failed to add match: %s", strerror(-r));
+                goto fail;
+        }
+
+        bus_match_dump(&bus->match_callbacks, 0);
+
+        *_bus = bus;
+        return 0;
+
+fail:
+        if (bus)
+                sd_bus_unref(bus);
+
+        return r;
+}
+
+static int server(sd_bus *bus) {
+        int r;
+        bool client1_gone = false, client2_gone = false;
+
+        while (!client1_gone || !client2_gone) {
+                _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+                pid_t pid = 0;
+                const char *label = NULL;
+
+                r = sd_bus_process(bus, &m);
+                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;
+                }
+
+                if (!m)
+                        continue;
+
+                sd_bus_creds_get_pid(sd_bus_message_get_creds(m), &pid);
+                sd_bus_creds_get_selinux_context(sd_bus_message_get_creds(m), &label);
+                log_info("Got message! member=%s pid=%lu label=%s",
+                         strna(sd_bus_message_get_member(m)),
+                         (unsigned long) pid,
+                         strna(label));
+                /* bus_message_dump(m); */
+                /* sd_bus_message_rewind(m, true); */
+
+                if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "LowerCase")) {
+                        const char *hello;
+                        _cleanup_free_ char *lowercase = NULL;
+
+                        r = sd_bus_message_read(m, "s", &hello);
+                        if (r < 0) {
+                                log_error("Failed to get parameter: %s", strerror(-r));
+                                goto fail;
+                        }
+
+                        lowercase = strdup(hello);
+                        if (!lowercase) {
+                                r = log_oom();
+                                goto fail;
+                        }
+
+                        ascii_strlower(lowercase);
+
+                        r = sd_bus_reply_method_return(m, "s", lowercase);
+                        if (r < 0) {
+                                log_error("Failed to send reply: %s", strerror(-r));
+                                goto fail;
+                        }
+                } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) {
+
+                        r = sd_bus_reply_method_return(m, NULL);
+                        if (r < 0) {
+                                log_error("Failed to send reply: %s", strerror(-r));
+                                goto fail;
+                        }
+
+                        client1_gone = true;
+                } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) {
+
+                        r = sd_bus_reply_method_return(m, NULL);
+                        if (r < 0) {
+                                log_error("Failed to send reply: %s", strerror(-r));
+                                goto fail;
+                        }
+
+                        client2_gone = true;
+                } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) {
+
+                        sleep(1);
+
+                        r = sd_bus_reply_method_return(m, NULL);
+                        if (r < 0) {
+                                log_error("Failed to send reply: %s", strerror(-r));
+                                goto fail;
+                        }
+
+                } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) {
+                        int fd;
+                        static const char x = 'X';
+
+                        r = sd_bus_message_read(m, "h", &fd);
+                        if (r < 0) {
+                                log_error("Failed to get parameter: %s", strerror(-r));
+                                goto fail;
+                        }
+
+                        log_info("Received fd=%d", fd);
+
+                        if (write(fd, &x, 1) < 0) {
+                                log_error("Failed to write to fd: %m");
+                                close_nointr_nofail(fd);
+                                goto fail;
+                        }
+
+                        r = sd_bus_reply_method_return(m, NULL);
+                        if (r < 0) {
+                                log_error("Failed to send reply: %s", strerror(-r));
+                                goto fail;
+                        }
+
+                } else if (sd_bus_message_is_method_call(m, NULL, NULL)) {
+
+                        r = sd_bus_reply_method_error(
+                                        m,
+                                        &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method."));
+                        if (r < 0) {
+                                log_error("Failed to send reply: %s", strerror(-r));
+                                goto fail;
+                        }
+                }
+        }
+
+        r = 0;
+
+fail:
+        if (bus) {
+                sd_bus_flush(bus);
+                sd_bus_unref(bus);
+        }
+
+        return r;
+}
+
+static void* client1(void*p) {
+        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        sd_bus *bus = NULL;
+        sd_bus_error error = SD_BUS_ERROR_NULL;
+        const char *hello;
+        int r;
+        int pp[2] = { -1, -1 };
+        char x;
+
+        r = sd_bus_open_user(&bus);
+        if (r < 0) {
+                log_error("Failed to connect to user bus: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_call_method(
+                        bus,
+                        "org.freedesktop.systemd.test",
+                        "/",
+                        "org.freedesktop.systemd.test",
+                        "LowerCase",
+                        &error,
+                        &reply,
+                        "s",
+                        "HELLO");
+        if (r < 0) {
+                log_error("Failed to issue method call: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_message_read(reply, "s", &hello);
+        if (r < 0) {
+                log_error("Failed to get string: %s", strerror(-r));
+                goto finish;
+        }
+
+        assert(streq(hello, "hello"));
+
+        if (pipe2(pp, O_CLOEXEC|O_NONBLOCK) < 0) {
+                log_error("Failed to allocate pipe: %m");
+                r = -errno;
+                goto finish;
+        }
+
+        log_info("Sending fd=%d", pp[1]);
+
+        r = sd_bus_call_method(
+                        bus,
+                        "org.freedesktop.systemd.test",
+                        "/",
+                        "org.freedesktop.systemd.test",
+                        "FileDescriptor",
+                        &error,
+                        NULL,
+                        "h",
+                        pp[1]);
+        if (r < 0) {
+                log_error("Failed to issue method call: %s", strerror(-r));
+                goto finish;
+        }
+
+        errno = 0;
+        if (read(pp[0], &x, 1) <= 0) {
+                log_error("Failed to read from pipe: %s", errno ? strerror(errno) : "early read");
+                goto finish;
+        }
+
+        r = 0;
+
+finish:
+        if (bus) {
+                _cleanup_bus_message_unref_ sd_bus_message *q;
+
+                r = sd_bus_message_new_method_call(
+                                bus,
+                                "org.freedesktop.systemd.test",
+                                "/",
+                                "org.freedesktop.systemd.test",
+                                "ExitClient1",
+                                &q);
+                if (r < 0)
+                        log_error("Failed to allocate method call: %s", strerror(-r));
+                else
+                        sd_bus_send(bus, q, NULL);
+
+                sd_bus_flush(bus);
+                sd_bus_unref(bus);
+        }
+
+        sd_bus_error_free(&error);
+
+        close_pipe(pp);
+
+        return INT_TO_PTR(r);
+}
+
+static int quit_callback(sd_bus *b, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+        bool *x = userdata;
+
+        log_error("Quit callback: %s", strerror(sd_bus_message_get_errno(m)));
+
+        *x = 1;
+        return 1;
+}
+
+static void* client2(void*p) {
+        _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+        sd_bus *bus = NULL;
+        sd_bus_error error = SD_BUS_ERROR_NULL;
+        bool quit = false;
+        const char *mid;
+        int r;
+
+        r = sd_bus_open_user(&bus);
+        if (r < 0) {
+                log_error("Failed to connect to user bus: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_message_new_method_call(
+                        bus,
+                        "org.freedesktop.systemd.test",
+                        "/foo/bar/waldo/piep",
+                        "org.object.test",
+                        "Foobar",
+                        &m);
+        if (r < 0) {
+                log_error("Failed to allocate method call: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_send(bus, m, NULL);
+        if (r < 0) {
+                log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
+                goto finish;
+        }
+
+        sd_bus_message_unref(m);
+        m = NULL;
+
+        r = sd_bus_message_new_signal(
+                        bus,
+                        "/foobar",
+                        "foo.bar",
+                        "Notify",
+                        &m);
+        if (r < 0) {
+                log_error("Failed to allocate signal: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_send(bus, m, NULL);
+        if (r < 0) {
+                log_error("Failed to issue signal: %s", bus_error_message(&error, -r));
+                goto finish;
+        }
+
+        sd_bus_message_unref(m);
+        m = NULL;
+
+        r = sd_bus_message_new_method_call(
+                        bus,
+                        "org.freedesktop.systemd.test",
+                        "/",
+                        "org.freedesktop.DBus.Peer",
+                        "GetMachineId",
+                        &m);
+        if (r < 0) {
+                log_error("Failed to allocate method call: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_call(bus, m, 0, &error, &reply);
+        if (r < 0) {
+                log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
+                goto finish;
+        }
+
+        r = sd_bus_message_read(reply, "s", &mid);
+        if (r < 0) {
+                log_error("Failed to parse machine ID: %s", strerror(-r));
+                goto finish;
+        }
+
+        log_info("Machine ID is %s.", mid);
+
+        sd_bus_message_unref(m);
+        m = NULL;
+
+        r = sd_bus_message_new_method_call(
+                        bus,
+                        "org.freedesktop.systemd.test",
+                        "/",
+                        "org.freedesktop.systemd.test",
+                        "Slow",
+                        &m);
+        if (r < 0) {
+                log_error("Failed to allocate method call: %s", strerror(-r));
+                goto finish;
+        }
+
+        sd_bus_message_unref(reply);
+        reply = NULL;
+
+        r = sd_bus_call(bus, m, 200 * USEC_PER_MSEC, &error, &reply);
+        if (r < 0)
+                log_info("Failed to issue method call: %s", bus_error_message(&error, -r));
+        else
+                log_info("Slow call succeed.");
+
+        sd_bus_message_unref(m);
+        m = NULL;
+
+        r = sd_bus_message_new_method_call(
+                        bus,
+                        "org.freedesktop.systemd.test",
+                        "/",
+                        "org.freedesktop.systemd.test",
+                        "Slow",
+                        &m);
+        if (r < 0) {
+                log_error("Failed to allocate method call: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_call_async(bus, m, quit_callback, &quit, 200 * USEC_PER_MSEC, NULL);
+        if (r < 0) {
+                log_info("Failed to issue method call: %s", bus_error_message(&error, -r));
+                goto finish;
+        }
+
+        while (!quit) {
+                r = sd_bus_process(bus, NULL);
+                if (r < 0) {
+                        log_error("Failed to process requests: %s", strerror(-r));
+                        goto finish;
+                }
+                if (r == 0) {
+                        r = sd_bus_wait(bus, (uint64_t) -1);
+                        if (r < 0) {
+                                log_error("Failed to wait: %s", strerror(-r));
+                                goto finish;
+                        }
+                }
+        }
+
+        r = 0;
+
+finish:
+        if (bus) {
+                _cleanup_bus_message_unref_ sd_bus_message *q;
+
+                r = sd_bus_message_new_method_call(
+                                bus,
+                                "org.freedesktop.systemd.test",
+                                "/",
+                                "org.freedesktop.systemd.test",
+                                "ExitClient2",
+                                &q);
+                if (r < 0) {
+                        log_error("Failed to allocate method call: %s", strerror(-r));
+                        goto finish;
+                }
+
+                sd_bus_send(bus, q, NULL);
+                sd_bus_flush(bus);
+                sd_bus_unref(bus);
+        }
+
+        sd_bus_error_free(&error);
+        return INT_TO_PTR(r);
+}
+
+int main(int argc, char *argv[]) {
+        pthread_t c1, c2;
+        sd_bus *bus;
+        void *p;
+        int q, r;
+
+        r = server_init(&bus);
+        if (r < 0) {
+                log_info("Failed to connect to bus, skipping tests.");
+                return EXIT_TEST_SKIP;
+        }
+
+        log_info("Initialized...");
+
+        r = pthread_create(&c1, NULL, client1, bus);
+        if (r != 0)
+                return EXIT_FAILURE;
+
+        r = pthread_create(&c2, NULL, client2, bus);
+        if (r != 0)
+                return EXIT_FAILURE;
+
+        r = server(bus);
+
+        q = pthread_join(c1, &p);
+        if (q != 0)
+                return EXIT_FAILURE;
+        if (PTR_TO_INT(p) < 0)
+                return EXIT_FAILURE;
+
+        q = pthread_join(c2, &p);
+        if (q != 0)
+                return EXIT_FAILURE;
+        if (PTR_TO_INT(p) < 0)
+                return EXIT_FAILURE;
+
+        if (r < 0)
+                return EXIT_FAILURE;
+
+        return EXIT_SUCCESS;
+}