1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/* SPDX-License-Identifier: LGPL-2.1+ */
#include <pthread.h>
#include "sd-bus.h"
#include "sd-event.h"
#include "sd-id128.h"
#include "alloc-util.h"
#include "fd-util.h"
#include "fs-util.h"
#include "mkdir.h"
#include "path-util.h"
#include "random-util.h"
#include "rm-rf.h"
#include "socket-util.h"
#include "string-util.h"
#include "tmpfile-util.h"
#include "tests.h"
static int method_foobar(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
log_info("Got Foobar() call.");
assert_se(sd_event_exit(sd_bus_get_event(sd_bus_message_get_bus(m)), 0) >= 0);
return sd_bus_reply_method_return(m, NULL);
}
static int method_exit(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
log_info("Got Exit() call");
assert_se(sd_event_exit(sd_bus_get_event(sd_bus_message_get_bus(m)), 1) >= 0);
return sd_bus_reply_method_return(m, NULL);
}
static const sd_bus_vtable vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_METHOD("Foobar", NULL, NULL, method_foobar, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("Exit", NULL, NULL, method_exit, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END,
};
static void* thread_server(void *p) {
_cleanup_free_ char *suffixed = NULL, *suffixed2 = NULL, *d = NULL;
_cleanup_close_ int fd = -1;
union sockaddr_union u = {};
const char *path = p;
int salen;
log_debug("Initializing server");
/* Let's play some games, by slowly creating the socket directory, and renaming it in the middle */
(void) usleep(100 * USEC_PER_MSEC);
assert_se(mkdir_parents(path, 0755) >= 0);
(void) usleep(100 * USEC_PER_MSEC);
d = dirname_malloc(path);
assert_se(d);
assert_se(asprintf(&suffixed, "%s.%" PRIx64, d, random_u64()) >= 0);
assert_se(rename(d, suffixed) >= 0);
(void) usleep(100 * USEC_PER_MSEC);
assert_se(asprintf(&suffixed2, "%s.%" PRIx64, d, random_u64()) >= 0);
assert_se(symlink(suffixed2, d) >= 0);
(void) usleep(100 * USEC_PER_MSEC);
assert_se(symlink(basename(suffixed), suffixed2) >= 0);
(void) usleep(100 * USEC_PER_MSEC);
salen = sockaddr_un_set_path(&u.un, path);
assert_se(salen >= 0);
fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
assert_se(fd >= 0);
assert_se(bind(fd, &u.sa, salen) >= 0);
usleep(100 * USEC_PER_MSEC);
assert_se(listen(fd, SOMAXCONN) >= 0);
usleep(100 * USEC_PER_MSEC);
assert_se(touch(path) >= 0);
usleep(100 * USEC_PER_MSEC);
log_debug("Initialized server");
for (;;) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(sd_event_unrefp) sd_event *event = NULL;
sd_id128_t id;
int bus_fd, code;
assert_se(sd_id128_randomize(&id) >= 0);
assert_se(sd_event_new(&event) >= 0);
bus_fd = accept4(fd, NULL, NULL, SOCK_NONBLOCK|SOCK_CLOEXEC);
assert_se(bus_fd >= 0);
log_debug("Accepted server connection");
assert_se(sd_bus_new(&bus) >= 0);
assert_se(sd_bus_set_description(bus, "server") >= 0);
assert_se(sd_bus_set_fd(bus, bus_fd, bus_fd) >= 0);
assert_se(sd_bus_set_server(bus, true, id) >= 0);
/* assert_se(sd_bus_set_anonymous(bus, true) >= 0); */
assert_se(sd_bus_attach_event(bus, event, 0) >= 0);
assert_se(sd_bus_add_object_vtable(bus, NULL, "/foo", "foo.TestInterface", vtable, NULL) >= 0);
assert_se(sd_bus_start(bus) >= 0);
assert_se(sd_event_loop(event) >= 0);
assert_se(sd_event_get_exit_code(event, &code) >= 0);
if (code > 0)
break;
}
log_debug("Server done");
return NULL;
}
static void* thread_client1(void *p) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
const char *path = p, *t;
int r;
log_debug("Initializing client1");
assert_se(sd_bus_new(&bus) >= 0);
assert_se(sd_bus_set_description(bus, "client1") >= 0);
t = strjoina("unix:path=", path);
assert_se(sd_bus_set_address(bus, t) >= 0);
assert_se(sd_bus_set_watch_bind(bus, true) >= 0);
assert_se(sd_bus_start(bus) >= 0);
r = sd_bus_call_method(bus, "foo.bar", "/foo", "foo.TestInterface", "Foobar", &error, NULL, NULL);
assert_se(r >= 0);
log_debug("Client1 done");
return NULL;
}
static int client2_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
assert_se(sd_bus_message_is_method_error(m, NULL) == 0);
assert_se(sd_event_exit(sd_bus_get_event(sd_bus_message_get_bus(m)), 0) >= 0);
return 0;
}
static void* thread_client2(void *p) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(sd_event_unrefp) sd_event *event = NULL;
const char *path = p, *t;
log_debug("Initializing client2");
assert_se(sd_event_new(&event) >= 0);
assert_se(sd_bus_new(&bus) >= 0);
assert_se(sd_bus_set_description(bus, "client2") >= 0);
t = strjoina("unix:path=", path);
assert_se(sd_bus_set_address(bus, t) >= 0);
assert_se(sd_bus_set_watch_bind(bus, true) >= 0);
assert_se(sd_bus_attach_event(bus, event, 0) >= 0);
assert_se(sd_bus_start(bus) >= 0);
assert_se(sd_bus_call_method_async(bus, NULL, "foo.bar", "/foo", "foo.TestInterface", "Foobar", client2_callback, NULL, NULL) >= 0);
assert_se(sd_event_loop(event) >= 0);
log_debug("Client2 done");
return NULL;
}
static void request_exit(const char *path) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
const char *t;
assert_se(sd_bus_new(&bus) >= 0);
t = strjoina("unix:path=", path);
assert_se(sd_bus_set_address(bus, t) >= 0);
assert_se(sd_bus_set_watch_bind(bus, true) >= 0);
assert_se(sd_bus_set_description(bus, "request-exit") >= 0);
assert_se(sd_bus_start(bus) >= 0);
assert_se(sd_bus_call_method(bus, "foo.bar", "/foo", "foo.TestInterface", "Exit", NULL, NULL, NULL) >= 0);
}
int main(int argc, char *argv[]) {
_cleanup_(rm_rf_physical_and_freep) char *d = NULL;
pthread_t server, client1, client2;
char *path;
test_setup_logging(LOG_DEBUG);
/* We use /dev/shm here rather than /tmp, since some weird distros might set up /tmp as some weird fs that
* doesn't support inotify properly. */
assert_se(mkdtemp_malloc("/dev/shm/systemd-watch-bind-XXXXXX", &d) >= 0);
path = strjoina(d, "/this/is/a/socket");
assert_se(pthread_create(&server, NULL, thread_server, path) == 0);
assert_se(pthread_create(&client1, NULL, thread_client1, path) == 0);
assert_se(pthread_create(&client2, NULL, thread_client2, path) == 0);
assert_se(pthread_join(client1, NULL) == 0);
assert_se(pthread_join(client2, NULL) == 0);
request_exit(path);
assert_se(pthread_join(server, NULL) == 0);
return 0;
}
|
