| /*-*- 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 <stdlib.h> |
| #include <pthread.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| |
| #include "log.h" |
| #include "util.h" |
| #include "macro.h" |
| #include "formats-util.h" |
| |
| #include "sd-bus.h" |
| #include "bus-error.h" |
| #include "bus-match.h" |
| #include "bus-internal.h" |
| #include "bus-util.h" |
| |
| static int match_callback(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_message *m, void *userdata, sd_bus_error *ret_error) { |
| int r; |
| |
| 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) |
| return log_error_errno(r, "Failed to send reply: %m"); |
| |
| 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_se(_bus); |
| |
| r = sd_bus_open_user(&bus); |
| if (r < 0) { |
| log_error_errno(r, "Failed to connect to user bus: %m"); |
| goto fail; |
| } |
| |
| r = sd_bus_get_bus_id(bus, &id); |
| if (r < 0) { |
| log_error_errno(r, "Failed to get server ID: %m"); |
| goto fail; |
| } |
| |
| r = sd_bus_get_unique_name(bus, &unique); |
| if (r < 0) { |
| log_error_errno(r, "Failed to get unique name: %m"); |
| 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_errno(r, "Failed to acquire name: %m"); |
| goto fail; |
| } |
| |
| r = sd_bus_add_fallback(bus, NULL, "/foo/bar", object_callback, NULL); |
| if (r < 0) { |
| log_error_errno(r, "Failed to add object: %m"); |
| goto fail; |
| } |
| |
| r = sd_bus_add_match(bus, NULL, "type='signal',interface='foo.bar',member='Notify'", match_callback, NULL); |
| if (r < 0) { |
| log_error_errno(r, "Failed to add match: %m"); |
| goto fail; |
| } |
| |
| r = sd_bus_add_match(bus, NULL, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL); |
| if (r < 0) { |
| log_error_errno(r, "Failed to add match: %m"); |
| goto fail; |
| } |
| |
| bus_match_dump(&bus->match_callbacks, 0); |
| |
| *_bus = bus; |
| return 0; |
| |
| fail: |
| 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_errno(r, "Failed to process requests: %m"); |
| goto fail; |
| } |
| |
| if (r == 0) { |
| r = sd_bus_wait(bus, (uint64_t) -1); |
| if (r < 0) { |
| log_error_errno(r, "Failed to wait: %m"); |
| 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="PID_FMT" label=%s", |
| strna(sd_bus_message_get_member(m)), |
| 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_errno(r, "Failed to get parameter: %m"); |
| 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_errno(r, "Failed to send reply: %m"); |
| 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_errno(r, "Failed to send reply: %m"); |
| 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_errno(r, "Failed to send reply: %m"); |
| 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_errno(r, "Failed to send reply: %m"); |
| 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_errno(r, "Failed to get parameter: %m"); |
| goto fail; |
| } |
| |
| log_info("Received fd=%d", fd); |
| |
| if (write(fd, &x, 1) < 0) { |
| log_error_errno(errno, "Failed to write to fd: %m"); |
| safe_close(fd); |
| goto fail; |
| } |
| |
| r = sd_bus_reply_method_return(m, NULL); |
| if (r < 0) { |
| log_error_errno(r, "Failed to send reply: %m"); |
| 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_errno(r, "Failed to send reply: %m"); |
| 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; |
| _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; |
| _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
| const char *hello; |
| int r; |
| _cleanup_close_pair_ int pp[2] = { -1, -1 }; |
| char x; |
| |
| r = sd_bus_open_user(&bus); |
| if (r < 0) { |
| log_error_errno(r, "Failed to connect to user bus: %m"); |
| 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_errno(r, "Failed to issue method call: %m"); |
| goto finish; |
| } |
| |
| r = sd_bus_message_read(reply, "s", &hello); |
| if (r < 0) { |
| log_error_errno(r, "Failed to get string: %m"); |
| goto finish; |
| } |
| |
| assert_se(streq(hello, "hello")); |
| |
| if (pipe2(pp, O_CLOEXEC|O_NONBLOCK) < 0) { |
| log_error_errno(errno, "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_errno(r, "Failed to issue method call: %m"); |
| 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, |
| &q, |
| "org.freedesktop.systemd.test", |
| "/", |
| "org.freedesktop.systemd.test", |
| "ExitClient1"); |
| if (r < 0) |
| log_error_errno(r, "Failed to allocate method call: %m"); |
| else |
| sd_bus_send(bus, q, NULL); |
| |
| } |
| |
| return INT_TO_PTR(r); |
| } |
| |
| static int quit_callback(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; |
| _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; |
| _cleanup_bus_error_free_ 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_errno(r, "Failed to connect to user bus: %m"); |
| goto finish; |
| } |
| |
| r = sd_bus_message_new_method_call( |
| bus, |
| &m, |
| "org.freedesktop.systemd.test", |
| "/foo/bar/waldo/piep", |
| "org.object.test", |
| "Foobar"); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate method call: %m"); |
| 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; |
| } |
| |
| m = sd_bus_message_unref(m); |
| |
| r = sd_bus_message_new_signal( |
| bus, |
| &m, |
| "/foobar", |
| "foo.bar", |
| "Notify"); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate signal: %m"); |
| 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; |
| } |
| |
| m = sd_bus_message_unref(m); |
| |
| r = sd_bus_message_new_method_call( |
| bus, |
| &m, |
| "org.freedesktop.systemd.test", |
| "/", |
| "org.freedesktop.DBus.Peer", |
| "GetMachineId"); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate method call: %m"); |
| 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_errno(r, "Failed to parse machine ID: %m"); |
| goto finish; |
| } |
| |
| log_info("Machine ID is %s.", mid); |
| |
| m = sd_bus_message_unref(m); |
| |
| r = sd_bus_message_new_method_call( |
| bus, |
| &m, |
| "org.freedesktop.systemd.test", |
| "/", |
| "org.freedesktop.systemd.test", |
| "Slow"); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate method call: %m"); |
| goto finish; |
| } |
| |
| reply = sd_bus_message_unref(reply); |
| |
| 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."); |
| |
| m = sd_bus_message_unref(m); |
| |
| r = sd_bus_message_new_method_call( |
| bus, |
| &m, |
| "org.freedesktop.systemd.test", |
| "/", |
| "org.freedesktop.systemd.test", |
| "Slow"); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate method call: %m"); |
| goto finish; |
| } |
| |
| r = sd_bus_call_async(bus, NULL, m, quit_callback, &quit, 200 * USEC_PER_MSEC); |
| 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_errno(r, "Failed to process requests: %m"); |
| goto finish; |
| } |
| if (r == 0) { |
| r = sd_bus_wait(bus, (uint64_t) -1); |
| if (r < 0) { |
| log_error_errno(r, "Failed to wait: %m"); |
| goto finish; |
| } |
| } |
| } |
| |
| r = 0; |
| |
| finish: |
| if (bus) { |
| _cleanup_bus_message_unref_ sd_bus_message *q; |
| |
| r = sd_bus_message_new_method_call( |
| bus, |
| &q, |
| "org.freedesktop.systemd.test", |
| "/", |
| "org.freedesktop.systemd.test", |
| "ExitClient2"); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate method call: %m"); |
| goto finish; |
| } |
| |
| (void) sd_bus_send(bus, q, NULL); |
| } |
| |
| 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; |
| } |