diff options
Diffstat (limited to 'src/libsystemd/test-bus-chat.c')
| -rw-r--r-- | src/libsystemd/test-bus-chat.c | 581 |
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; +} |